Ohm's Law — Quiz Answers

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Which statement describes the relationship of resistance and current?

A
Resistance is inversely proportional to current because cap r is equal to cap v cap i .
B
Resistance is inversely proportional to current because cap r is equal to cap v over cap i .
C
Resistance is directly proportional to current because cap r is equal to cap v over cap i .
D
Resistance is directly proportional to current because cap r is equal to cap v cap i .
3

A circuit has a current of 2 point 4 A The voltage is increased to 4 times its original value, while the resistance stays the same. How should the resistance change to return the current to its original value if the voltage remains at its increased amount?

A
It should increase to four times its value.
B
It should decrease to one-fourth of its value.
C
It should increase to two times its value.
D
It should decrease to one-half of its value.
4

According to Ohm’s law, which combination of units is the same as the unit for resistance?

A
ampere times volt
B
volt divided by ampere
C
volt plus ampere
D
ampere divided by volt
5

Which equation is correct according to Ohm’s law?

A
cap r is equal to cap i over cap v
B
cap i is equal to cap r over cap v
C
cap r is equal to cap i cap v
D
cap v is equal to cap i cap r
6

When the resistance in a circuit remains constant, how are the voltage and current related?

A
The current doubles when the voltage doubles because they are directly proportional.
B
The current is cut in half when the voltage doubles because they are directly proportional.
C
The current is cut in half when the voltage doubles because they are inversely proportional.
D
The current doubles when the voltage doubles because they are inversely proportional.
7

Which symbol and unit of measurement are used for electric current?

A
symbol: cap c ; unit: cap A
B
symbol: cap i ; unit: cap c
C
symbol: cap A ; unit: cap i
D
symbol: cap i ; unit: cap A
8

Which symbol and unit of measurement are used for voltage?

A
symbol: cap v ; unit: cap v
B
symbol: cap r ; unit: cap v
C
symbol: cap r ; unit cap omega :
D
symbol: cap v ; unit: cap A
10

Which statement describes the relationship of voltage and current?

A
Voltage is directly proportional to current because cap i is equal to cap v cap r .
B
Voltage is directly proportional to current because cap i is equal to cap v over cap r .
C
Voltage is inversely proportional to current because cap i is equal to cap v cap r .
D
Voltage is inversely proportional to current because cap i is equal to cap v over cap r .

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