Voltage and Current Calculations Quiz

What is the formula to calculate current using voltage and resistance?

If the voltage is 12 V and the resistance is 600 ohms, what is the current?

• 0.02 A

• 0.5 A

• 0.1 A

• 0.02 A

What is the unit of current?

• Volt

• Ohm

• Ampere

• Watt

A circuit has a voltage of 9 V and a resistance of 3 ohms. Calculate the current.

• 3 A

• 6 A

• 9 A

• 12 A

What is the resistance if the voltage is 10 V and the current is 2 A?

• 5 ohms

• 10 ohms

• 20 ohms

• 2 ohms

If a device has a resistance of 100 ohms and a current of 0.5 A, what is the voltage across it?

• 50 V

• 5 V

• 20 V

• 200 V

What is the resistance if the voltage is 24 V and the current is 3 A?

• 8 ohms

• 12 ohms

• 72 ohms

• 6 ohms

What is the symbol for resistance in electrical equations?

• V

• I

• R

• P

A circuit has a current of 2 A and a resistance of 4 ohms. What is the voltage?

• 8 V

• 6 V

• 2 V

• 4 V

Tags

NGSS.MS-PS3-5

If the voltage is 15 V and the resistance is 5 ohms, what is the current?

• 3 A

• 5 A

• 15 A

• 1 A