Question 692: Current Electricity

Question

Two bulbs of (40 W, 200 V), and (100 W, 200 V). Then correct relation for their resistances

Accepted Answer

$$P = {{{V^2}} \over R}$$
$$ \Rightarrow R \propto {1 \over P}$$
$$ 	herefore {R_{40}} > {R_{100}}$$

Answer

R
40
< R
100

Answer

R
40
> R
100

Answer

R
40
= R
100

Answer

no relation can be predicted.

Current Electricity