Ohm's Law Answers
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The chart shows the voltage of four electric currents.
A
Current W flows at a higher rate than Current Z.B
Current Y flows at a lower rate than Current X.C
Current X has a lower potential difference than Current Y.D
Current Z has a greater potential difference than Current W.2
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Look at the diagram showing resistance and flow of electrons.
A
X: High resistanceY: Low resistanceZ: Flow of electronsB
X: Low resistanceY: Flow of electronsZ: High resistanceC
X: Flow of electronsY: High potential energyZ: Low potential energyD
X: Low potential energyY: High potential energyZ: Flow of electrons3
Electric current flows through paths called circuits. People often build circuits using wires, resistors, and batteries. A battery is a voltage source.
A
wires, a 9V battery, no resistorsB
wires, a 9V battery, a light bulbC
wires, a 1.5V battery, no resistorsD
wires, a 1.5V battery, a light bulb4
What would decrease the resistance of wires carrying an electric current?
A
shorter wiresB
higher-temperature wiresC
darker-colored wiresD
thinner wires5
Which two wire properties would provide the greatest resistance to the flow of a current?
A
short, thinB
long, thinC
hot, thickD
cool, thickDid you find these answers helpful?
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