There are two electric bulbs,(i) marked 60, W | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) We know that the formula for resistance is $R = \frac{V^2}{P}$,where $V$ is the voltage and $P$ is the power.Since both bulbs are rated for the sa

Vedclass · Accepted Answer

$60\, W$ bulb

Vedclass · Answer

(A) We know that the formula for resistance is $R = \frac{V^2}{P}$,where $V$ is the voltage and $P$ is the power.Since both bulbs are rated for the same voltage $(V = 220\, V)$,the resistance $R$ is inversely proportional to the power $P$ $(R \propto \frac{1}{P})$.Therefore,the bulb with the lower power rating will have a higher resistance.Comparing the two bulbs,the $60\, W$ bulb has a lower power rating than the $100\, W$ bulb.Thus,the $60\, W$ bulb has higher resistance.

There are two electric bulbs,$(i)$ marked $60\, W, 220\, V$ and $(ii)$ marked $100\, W, 220\, V$. Which one of them has higher resistance?

Similar Questions

How much current will an electric bulb of resistance $1100 \ \Omega$ draw from a $220 \ V$ source? If a heater of resistance $100 \ \Omega$ is connected to the same source instead of the bulb,calculate the current drawn by the heater.

$A$ heater is joined in parallel with a $60\, W$ bulb and connected to the mains. If the $60\, W$ bulb is replaced by a $100\, W$ bulb,will the rate of heat produced by the heater be more,less,or remain the same?

Why is very less heat generated in long electric cables than in filaments of electric bulbs?

How many electrons constitute a total charge of $1 \ C$?

$1 \, \mu A = \ldots \ldots \ldots \, A$

Vedclass Test Series

Exam Paper Generator

Online Exam Module