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WorksheetsUnit Test: Electric Circuit and Electrostatics
Total questions: 18
Worksheet time: 47mins
Which of the following is a list of only electrical insulators?
Aluminum, copper, graphite
Plastic, graphite, paper clips
Rubber, plastic, wood
Paper, aluminum, copper
If you rub a balloon on your hair, the hair near the balloon will be strongly attracted to the balloon. The balloon rubbed off some electrical charge from the hair. The balloon is now negative, and each hair is now positive. Which of the following diagrams best shows the direction of the forces between a positive and negative charge?
Which of the following statement is true about the diagram?
Sphere A and B both are conductor.
Sphere A and B both are insulator.
Sphere A is insulator and B is conductor.
Sphere A is conductor and B is insulator
Which of the following statement is true about method of charging?
Iron can charge by only induction, but rubber can be charged by both conduction and induction.
Rubber can charge by only induction, but iron can be charged by both conduction and induction.
Iron can charge by only conduction, but rubber can be charged by both conduction and induction.
Rubber can charge by only conduction, but iron can be charged by both conduction and induction.
Electrical Insulators are used to resist the flow of…
Atoms
Neutrons
Molecules
Electrons
What current will flow if the battery produces 6.7 V in the circuit below and the resistance is
130 Ω?
87 A
13 A
0.052 A
19 A
Find the electric power if 10 amps of current when plugged into a 120-volt outlet.
1200.0 W
5.0 W
20.0 W
12.0 W
Use the diagram above to answer the next two questions.
What is the total resistance of the circuit?
16 Ω
3 Ω
1.42 Ω
12 Ω
What is the current through the 6 Ω resistor?
4 A
2 A
6 A
12 A
Two 10.0 Ω resistors are connected in series across a 120 V battery. What is the current in the circuit?
12.0 A
5.0 A
6.0 A
10.0 A
A charge of +5.67 x 10-18 C is placed 3.5 x 10-6 m away from another charge of – 3.79 x 10-19 C. What is the force of attraction between them?
It has a magnitude of 1.58 x 10-15 N and is repulsive
It has a magnitude of 5.52 x 10-21 N and is repulsive
It has a magnitude of 1.58 x 10-15 N and is attractive
It has a magnitude of 5.52 x 10-21 N and is attractive
Two 10.0 Ω resistors are connected in parallel across a 120 V battery. What is the equivalent resistance of the circuit?
10.0 Ω
5.0 Ω
0.2 Ω
12.0 Ω
How many kilowatt-hours are consumed by a 100 W incandescent light bulb if it is left on for an entire day and night?
2.4 Kwh
0.1 Kwh
2400 Kwh
100 Kwh
Which of the following is unique to a parallel circuit of resistors?
The current flows from positive to negative.
The potential difference (Voltage) is the same across all resistors.
The potential difference (Voltage) is split between the resistors.
The current stays the same through each resistor
Two charges, q1 and q2 are a distance d apart from each other and exert a force of F on each other. What happens to the force if q1 is multiplied by 4?
16F
4F
16F
F4
The batteries in each of the circuits above are identical. In which circuit is the current greatest?
A
B
C
D
According to Ohm’s law, which of the following statement is true about the relation between current, voltage, and resistance in an electric circuit?
Current is directly proportional to the resistance and inversely proportional to the voltage.
Current is directly proportional to the voltage and inversely proportional to the resistance.
Current is directly proportional to the both resistance and voltage.
Current is inversely proportional to the both resistance and voltage.
What is the voltage across the 6 Ω resistor in the diagram to the above?
6 V
21 V
43 V
20 V
