Ohm's Law

Find the current through a 12-ohm resistive circuit when 24 volts is applied.

• 20A

• 2A

• ,5A

Find the resistance of a circuit that draws 0.06 amperes with 12 volts applied.

• 20Ω

• 0.05Ω

• 200Ω

• .5Ω

Find the applied voltage of a circuit that draws 0.2 amperes through a 4800-ohm resistance.

• 960V

• 240V

• 24000V

• 96V

Find the applied voltage of a telephone circuit that draws 0.017 amperes through a resistance of 15,000

ohms.

• 25V

• 25.5V

• 255V

• 2.5V

A 20-volt relay has a coil resistance of 200 ohms. How much current does it draw?

• 4000A

• 4A

• 1A

• .1A

A series circuit has 1200-ohms of total resistance with 12 V as the power supply.

What is the total current of this circuit?

• 0.01A

• 0.1A

• 1A

• 10A

A transformer is connected to 120 volts. Find the current if the resistance is 480-ohms?

• 0.25A

• 4A

• 25A

• 40A

• 2Ω

• 20Ω

• 24Ω

• 240Ω

• 0.5V

• 5V

• 50V

• 500V

• 0.83A

• 83A

• 12A

• 1.2A