Unit 4 Concept 2 Equation Practice

What voltage produces a current of 200 amps with a resistance of 25 ohms?

• 5000 V

• 8 V

• 3.125 V

• 50 V

A 15 V battery produces a current of 9 amps. What is the resistance?

• 135 ohms

• 0.6 ohms

• 1.67 ohms

• 3 ohms

Silver has a resistance of 0.0215 ohms. What voltage would produce a current of 350 amps?

• 0.00006 V

• 16,279.1 V

• 7.525 V

• 2.15 V

What is the current produced by a potential difference of 120 volts through a resistance of 0.8 ohms?

• 150 amps

• 96 amps

• 0.007 amps

• 12.8 amps

What resistance would produce a current of 225 amps from a 5 V battery?

• 1125 ohms

• 0.02 ohms

• 45 ohms

• 52 ohms

A current of 450 amps is flowing through a copper wire with a resistance of 25 ohms. What is the voltage?

• 0.06 V

• 18 V

• 55 V

• 11,250 V

An 11 V battery produces a current of 22 amps. What is the resistance?

• 242 ohms

• 2 ohms

• 0.5 ohms

• 1.22 ohms

What resistance would produce a current of 250 amps with a potential difference of 4,500 volts?

• 18 ohms

• 0.056 ohms

• 1,125,000 ohms

• 0 ohms

To calculate Voltage Difference, you have to

• multiply

• divide

To calculate Current, you have to

• multiply

• divide