If a current of $7 A$ $7 A$ passing through a circuit generates $14 W$ $14 W$ of power, what is the resistance of the circuit?

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Answer 1 · 2016-02-15T12:58:31

The resistance is $R=2/7 Omega$

We have the following data:

$I =7A$

$P=14W$

From this we can calculate the voltage:

$U=P/I=14/7=2V$

Now when we have the voltage and the current we can calculate the resistance as:

$R=U/I=2/7 Omega$

If a current of 7 A7A7 A passing through a circuit generates 14 W14W14 W of power, what is the resistance of the circuit?