Physics

Problem

A simple electrical circuit is set up with a resistance,

R

, in series with an emf source of negligible internal resistance. The power dissipated is

P

. If the resistance is replaced by a new resistance of

3R

, the power dissipated will be a.

\frac{P}{9}

. b.

\frac{P}{3}

. c.

P

. d.

3P