If the voltage is 12 volts and the resistance is 3 ohms what are the amps in this circuit?

Answer 1

Using Ohm's law, we can find the current (I) in a circuit where 3 ohms is the resistance (R) and 12 volts is the appllied voltage (V). [(E) means energy]

I = V / R = 12 / 3 = 4 amps.

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Answer 2

Amperes is a rate of transfer of charge, not an amount of charge, so asking "how long..." does not make sense. I did not change the question, because I wanted to make the distinction clear.

If, instead, the question is "What voltage is required to create a current of 12 amperes through 3 ohms of resistance?", then the answer is 36 volts.

Ohm's law: Voltage equals current times resistance.

Answer 3

By Ohm's Law, resistance equals voltage divided by current; the resistance of a 12 volt electrical circuit having a current flow of 3 amperes is 4 ohms.

Answer 4

By Ohm's Law, resistance equals voltage divided by current; the resistance of a 12 volt electrical circuit having a current flow of 2 amperes is 6 ohms.

Answer 5

Resistance is the ratio of voltage to current, R = V/I.

You can now manipulate this equation and find out the answer for yourself!

Answer 6

If 12 volts are being applied to a resistance of 3 ohms, _______ amperes will flow.

Answer 7

If the voltage between the ends of the 3 ohms is 12 volts,

then the current through it is 4 amperes.

Answer 8

4

Answer 9

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