A charge of $35 C$ passes through a circuit every $5 s$ . If the circuit can generate $98 W$ of power, what is the circuit's resistance?

Question

1257 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2016-12-29T04:46:56

The circuit's resistance is $2$ ohms.

As a charge of $35C$ passes through a circuit every $5s$

the current is $35/5=7$ amperes.

Power of a resistance $R$ through which a current of $I$ amperes is passing is $I^2xxR$ watts.

Hence $7^2xxR=98$

and $I=98/49=2$ ohms.

A charge of 35 C35 C passes through a circuit every 5 s5 s. If the circuit can generate 98 W98 W of power, what is the circuit's resistance?