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WorksheetsElectricity and Magnetism
Total questions: 20
Worksheet time: 12mins
______ is the potential energy per unit of positive charge
Resistor
Current
Electric Potential
Potential Difference
_______ is any wire in a circuit which causes a decrease in the flow of current due to its diameter or material.
Resistor
Current
Resistance
Multimeter
_____is the unit of measure for the magnitude of a magnetic field
Tesla
Current
Resistance
Ohm's Law
____is the amount of charge that passes a given point in a specified period of time, measured in amperes.
Resistor
Current
Ohm's Law
Potential Difference
____is the decrease in the flow of electrons and current due to a change in the diameter of material of a wire. It is measured in Ohms.
Resistor
Electric Potential
Current
Resistance
______ is an instrument used to measure current, voltage, and resistance.
Multi meter
Ohm's Law
Resistor
Current
_____is the ratio of voltage to current is resistance and is represented by the equation R=V/I.
Mrs. Pulaski's Law
Multi-meter
Ohm's Law
Potential Difference
____ is the difference in electrical potential between point A and point B. In a circuit, Point A and point B represent the positive and negative terminals of a power source such as a battery.
Resistor
Tesla
Electric Potential
Potential Difference
Ohm's Law R =
Resistance
Current
Voltage
Ohm's Law V=
Resistance
Current
Voltage
Ohm's Law I =
Resistance
Current
Voltage
As voltage in a current increases, current increases but the resistance to the flow ______________
increases
decreases
remains constant
Increasing the length of a resistor increases the amount of resistance and _________ current.
increases
decreases
remains constant
Increasing the cross-sectional area of a resistor decreases the amount of resistance and ________ current
increases
decreases
remains constant
The strength of an electromagnet is affected by the number of turn of a wire in the coil over a specific length and by the amount of _________ flowing through the wire.
Resistance
Current
Coil
An electrical circuit has a current of 5 amps and a resistance of 10 ohms. What is the voltage of this circuit?
15 Volts
5 Volts
30 Volts
50 Volts
As the number of batteries in a circuit increase, the total voltage of the circuit also increases.
True
False
Increasing the amount of resistance in a circuit decreases the total voltage of the circuit.
True
False
The strength of an electromagnet depends on the voltage produced by the power source and the _________
Type of resistor used
Number of times the wire is coiled
Type of battery used
A circuit has a resistor with a length of 8mm. They replace the 8mm resistor with a length of 16mm resistor and the same cross sectional area as the original resistor. What will happen to the current and the resistance in the circuit?
Current will increase and resistance decrease
Current will decrease and resistance will increase
Current will be constant and resistance will decrease
