Ohm’s Law Practice Worksheet

If a resistor has 2 kΩ resistance and the current is 3 mA, what is the voltage?

• 0.006 V

• 0.6 V

• 6 V

• 600 V

A current of 200 μA flows through a 10 kΩ resistor. Find the voltage across it.

• 0.2 V

• 2 V

• 20 V

• 200 V

A 47 Ω resistor has 4.7 mA current. What is the voltage drop?

• 0.022 V

• 0.22 V

• 2.21 V

• 22.1 V

The current through a 1 MΩ resistor when 5 V is applied is:

• 5 μA

• 50 μA

• 5 mA

• 5 A

If R = 330 Ω and I = 2 mA, find V.

• 0.66 V

• 6.6 V

• 66 V

• 0.066 V

What resistance allows 10 mA to flow from a 9 V source?

• 90 Ω

• 900 Ω

• 9 kΩ

• 90 kΩ

Find the current if 12 V is applied to a 4.7 kΩ resistor.

• 2.55 A

• 2.55 mA

• 25.5 mA

• 0.255 A

A 5 V supply drives 500 μA through a resistor. What is the resistance?

• 1 Ω

• 10 Ω

• 1 kΩ

• 10 kΩ

A current of 3 mA passes through a 100 Ω resistor. Find V.

• 0.03 V

• 0.3 V

• 3 V

• 30 V

If a resistor has 470 kΩ resistance and is connected to 12 V, what is the current?

• 25.5 μA

• 2.55 μA

• 255 μA

• 25.5 mA