WorksheetsELECTROSTATICS
Total questions: 55
Worksheet time: 28mins
A negatively charged rod is brought near a metal can that rests on a wooden box. You touch the opposite side of the can momentarily with your finger. If you remove your finger before removing the rod, what will happen to the can?
It will be discharged
It will become positively charged.
It will become negatively charged.
It will remain neutral.
How does the electric field strength change as the distance from a charged object increases?
The electric field strength increases.
The electric field strength decreases.
The electric field strength remains constant.
The electric field strength fluctuates randomly.
Which of the following can be attracted by a positively charged object?
Another positively charged object
Any object
A neutral object
No other object
Which of the following BEST explains why a charged object experiences a force in an electric field?
The electric field causes a change in the object's charge
The electric field generates a magnetic field that interacts with the object
The electric field exerts a force on any charged object in its vicinity
The electric field creates a potential difference that attracts the object
What does Ohm's Law describe concerning electrical circuits?
The relationship between voltage and current in a circuit.
The relationship between power and resistance in a circuit.
The relationship between charge and capacitance in a circuit.
The relationship between frequency and wavelength in a circuit.
According to Ohm's Law, if the voltage across a resistor is increased while the resistance remains constant, what happens to the current flowing through the resistor?
The current decreases.
The current increases.
The current remains the same.
The current becomes zero.
Which of the following is an example of charging by conduction?
Rubbing a balloon on a wool sweater to create static electricity
Touching a charged object to a neutral object
Charging a metal sphere by bringing a charged rod into contact with it
Using a Van de Graaff generator to create a spark
Which of the following describes how electric charges interact with each other?
Like charges repel, opposite charges attract
Like charges attract, opposite charges repel
All charges repel each other
All charges attract each other
Which of the following is a property of an object that has been charged by induction?
It has gained or lost electrons
It has a net charge of zero
It has the same charge as the object inducing the charge
It has a higher charge than before
According to Ohm's Law, if the resistance in a circuit is doubled while the voltage remains constant, what happens to the current?
The current doubles.
The current halves.
The current remains the same.
The current becomes zero.
How does the direction of an electric field relate to the direction of the force experienced by a positively charged object in that field?
The force and the electric field have the same direction
The force is perpendicular to the electric field
The force and the electric field are always in opposite directions
The force is proportional to the strength of the electric field
Why do insulators not conduct electricity as well as conductors?
Insulators have fewer free electrons than conductors
Insulators have more free electrons than conductors
Insulators do not have any electrons
Insulators have a higher resistance than conductors
What is the difference between a positive and a negative charge?
A positive charge has more electrons than protons, while a negative charge has more protons than electrons
A positive charge has more protons than electrons, while a negative charge has more electrons than protons
A positive charge has the same number of protons and electrons, while a negative charge has more protons than electrons
A positive charge has the same number of protons and electrons, while a negative charge has more electrons than protons
In a circuit where Ohm's Law is applicable, if the voltage is zero, what can be said about the current flowing through the circuit?
The current is zero.
The current is infinite.
The current is constant.
The current depends on the resistance.
What is the direction of the electric force between two negatively charged particles?
Away from each other
Toward each other
Stay in place
Cannot be determined
What does Kirchhoff's Voltage Law (KVL) state?
The sum of currents entering a junction is equal to the sum of currents leaving the junction.
The algebraic sum of voltage drop and voltage rise around a closed loop in a circuit is equal to Zero.
The voltage drop across a resistor is inversely proportional to the current flowing through it.
The resistance of a conductor is directly proportional to its length and inversely proportional to its cross-sectional area.
How does the strength of the electric force between two charged objects change if the distance between them is doubled?
It increases by a factor of 4.
It decreases by a factor of 4.
It increases by a factor of 2.
It decreases by a factor of 2.
What will happen to an uncharged conducting sphere if brought in contact with a highly positive body?
It will become polarized.
It will remain uncharged.
It will become positively charged.
It will become negatively charged.
A toddler slides down a plastic slide (made of polyethylene) in the playground while wearing cotton shorts. Which of the following statements is TRUE?
The toddler will gain protons while the slide will lose protons and [slide] have a negative charge.
The toddler will gain electrons while the slide will lose electrons and [slide] have a negative charge.
The toddler will lose electrons while the slide will gain electrons and [slide] have a negative charge.
The toddler will lose protons while the slide will gain protons and [slide] have a positive charge.
What physical law is analogous to Coulomb's Law?
Law of Attraction
Law of Universal Gravitation
Law of Conservation of Energy
Newton’s Laws of Motion
What method of charging can explain a lightning strike?
By Friction
By Conduction
By Convection
By Induction
If 500 J of work are required to carry a 40-C charge from one point to another, the potential difference between these two points is
12.5 V
20.0 V
0.08 V
0 V
The potential difference between two points is 100 V. If a particle with a charge of 2 C is transported from one of these points to the other, the magnitude of the work done is:
200 J
100 J
50 J
2 J
When can you say an object or a body is electrically neutral?
Electrons are being added to a body.
Electrons are taken out from a body.
Electrons and protons have the same amount inside a body.
Electrons and protons are being taken away from the body.
The magnitude of electric potential is ______ at an infinite distance.
Zero
Positive infinity
Negative Infinity
Cannot be determined
The transfer of electrons from one body to another proves what law?
Coulomb’s Law
Law of Universal Gravitation
Law of Conservation of Charges
Law of Conservation of Energy
Which of the following statements best describes Kirchhoff's Current Law?
The total current entering a junction is equal to the total current leaving the junction.
The total voltage drop across a loop is equal to the total resistance in the loop.
The total power dissipated in a circuit is equal to the total power supplied to the circuit.
The total resistance in a parallel circuit is equal to the reciprocal of the sum of individual resistances.
What does Kirchhoff's Voltage Law (KVL) allow you to determine in a circuit?
The total resistance of the circuit
The current flowing through individual resistors
The voltage rise/drop across each resistor in a loop
The power dissipated by each resistor in the circuit
While solving for the loop of Kirchhoff’s Voltage Law, you encountered a resistor, which of the following formulas should be used?
No formula is needed, just use the given Voltage.
Use the value of the Current multiplied by the Resistance of the resistor.
Use the value of the Voltage divided by the current.
Use the value of the Current multiplied by the given Voltage.
While solving for the loop of Kirchhoff’s Voltage Law, you encountered a battery, which of the following formulas should be used?
No formula is needed, just use the given Voltage.
Use the value of the Current multiplied by the Resistance of the resistor.
Use the value of the Voltage divided by the current.
Use the value of the Current multiplied by the given Voltage.
Kirchhoff's Rules are particularly useful in analyzing circuits that involve:
Only series connections
Only parallel connections
Both series and parallel connections
Superconducting materials
In a series circuit containing three resistors, how does the total resistance of the circuit compare to the resistance of the individual resistor?
It is equal to the sum of the resistances of the individual resistors.
It is greater than the sum of the resistances of the individual resistors.
It is less than the sum of the resistances of the individual resistors.
It depends on the voltage across the resistors.
What happens to the total resistance of a parallel circuit as more resistors are added in parallel?
It decreases.
It increases.
It remains constant.
It becomes zero.
In a parallel circuit containing three resistors, how does the total resistance of the circuit compare to the resistance of the individual resistor?
It is equal to the sum of the resistances of the individual resistors.
It is greater than the sum of the resistances of the individual resistors.
It is less than the sum of the resistances of the individual resistors.
It depends on the voltage across the resistors.
If two resistors are connected in series, how does the current flowing through each resistor compare?
The current is equal in both resistors.
The current is greater in the first resistor.
The current is greater in the second resistor.
The current depends on the voltage across the resistors.
Which of the following statements about resistors in PARALLEL connection is FALSE?
Potential difference is the same as for the individual resistors.
Equivalent resistance is less than the individual resistance.
Equivalent resistance is greater than individual resistance.
Voltages are the same across every resistor.
What is the purpose of a surge protector in electrical systems?
Regulating the voltage to a constant level
Protecting against lightning strikes
Preventing electrical fires
Suppressing voltage spikes and surges
What is the equivalent resistance of two resistors, each having 4 Ω, and connected in a parallel connection?
8 Ω
4 Ω
2 Ω
0 Ω
What is the equivalent resistance of two resistors, each having 4 Ω, and connected in series?
8 Ω
4 Ω
2 Ω
0 Ω
When charging by conduction, when the charged rod is positive, what happens to the charge of the neutral object?
It becomes positively charged.
It becomes negatively charged.
It becomes both positively and negatively charged.
It remains neutral.
What is charging by friction?
Charging a neutral object by bringing it into contact with a charged object.
Charging a neutral object by bringing it close to a charged object.
Charging a neutral object by rubbing it with another object.
Charging a neutral object by heating it.
When charging by induction, when the charged rod is positive, what happens to the charge of the neutral object?
It becomes positively charged.
It becomes negatively charged.
It becomes both positively and negatively charged.
It remains neutral.
What is charging by conduction?
Charging a neutral object by bringing it into contact with a charged object.
Charging a neutral object by bringing it close to a charged object.
Charging a neutral object by rubbing it with another object.
Charging a neutral object by heating it up.
What is charging by induction?
Charging a neutral object by bringing it into contact with a charged object.
Charging a neutral object by bringing it close to a charged object.
Charging a neutral object by rubbing it with another object.
Charging a neutral object by heating it.
If three resistors of different values are connected in parallel, how does the voltage drop across each resistor compare?
The voltage drop is equal across all resistors.
The voltage drop is greater across the resistor with the highest resistance.
The voltage drop is greater across the resistor with the lowest resistance.
The voltage drop depends on the current flowing through each resistor.
In a parallel circuit with two identical resistors, if one resistor is replaced with a resistor of higher resistance, what happens to the total resistance of the circuit?
It increases.
It decreases.
It remains constant.
It becomes zero.
Which of the following is NOT a recommended practice for electrical safety?
Using grounded tools and equipment
Handling electrical appliances with wet hands
Keeping electrical outlets covered when not in use
Regularly inspecting and maintaining electrical systems
What is the potential difference between two points in a circuit if 10 Joules of energy are used to move 2 Coulombs of charge between the two points?
0.2 V
2 V
5 V
20 V
Which of the following is NOT a safe practice when using extension cords?
Overloading the extension cord with multiple devices
Inspecting the cord for damage before use
Using extension cords outdoors that are rated for outdoor use
Taping extension cords to the floor to prevent tripping
What is the equivalent resistance of two resistors in a SERIES circuit if one of them is 5.0 Ω and the other one is 10.0 Ω?
3.33 Ω
10.0 Ω
5.00 Ω
15.0 Ω
What is the equivalent resistance of two resistors in a PARALLEL circuit if one of them is 5.0 Ω and the other one is 10 Ω?
3.33 Ω
10.0 Ω
5.00 Ω
15.0 Ω
If the potential difference of two capacitors within point A and point B is equal to 10 V and two of them are connected in a parallel connection, What is the voltage of one of the capacitors?
0 V
10.0 V
5.00 V
Cannot be determined
If the charge of the 1st resistor in a series connection is 10 nC, what is the charge of the 2nd resistor (that is in series connection with the 1st one)?
3.33 nC
10.0 nC
5.00 nC
15.0 nC
If In a circuit with three independent loops, how many independent Kirchhoff's Voltage Law equations are typically needed to analyze the circuit?
One
Two
Three
It depends on the arrangement of the resistors in the circuit.
If the potential difference across the 1st resistor is 10 V and then across the 2nd resistor is also 10 V, what is the potential difference across the two resistors given that the two resistors are in a series connection?
5.00 V
15.0 V
10.00 V
20.0 V
