Ohm's Law

Question 1

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

Revolt · Accepted Answer

symbol: I; unit: A

Question 2

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

Revolt · Accepted Answer

The current doubles when the voltage doubles because they are directly proportional.

Question 3

Kaya collects the data shown in the table.

Revolt · Accepted Answer

20

Question 4

Which statement describes the relationship of voltage and current?

Revolt · Accepted Answer

Voltage is directly proportional to current because I = .

Question 5

If voltage in a circuit is constant, the current can be cut to half of its original value by changing the resistance to ________ its original value.

Revolt · Accepted Answer

two times

Question 6

Which statement describes the relationship of resistance and current?

Revolt · Accepted Answer

Resistance is inversely proportional to current because R = .

Question 7

Which symbol and unit of measurement are used for resistance?

Revolt · Accepted Answer

symbol: R; unit :

Question 8

A light bulb has a resistance of 360 . What is the current in the bulb when it has a potential difference of 120 V across it?

Revolt · Accepted Answer

0.33 A

Question 9

Jaipal measures a circuit at 1.2 A and 24 . Using Ohm’s law, what can he calculate for the circuit?

Revolt · Accepted Answer

voltage (V)

Question 10

Which symbol and unit of measurement are used for voltage?

Revolt · Accepted Answer

symbol: V; unit: V

Ohm's Law Answers