Out of the two,a toaster of 1, kW and an elec | 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.Assuming the voltage $V$ is constant

Vedclass · Accepted Answer

Toaster

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.Assuming the voltage $V$ is constant for both appliances,the resistance $R$ is inversely proportional to the power $P$,i.e.,$R \propto \frac{1}{P}$.For the toaster,$P_1 = 1\, kW$.For the electric heater,$P_2 = 2\, kW$.Since $P_1  R_2$.Therefore,the $1\, kW$ toaster has a greater resistance than the $2\, kW$ electric heater.

Out of the two,a toaster of $1\, kW$ and an electric heater of $2\, kW$,which has a greater resistance?

Similar Questions

How does the resistivity of alloys compare with those of pure metals from which they may have been formed?

What is the electrical resistivity of a material? What is its $SI$ unit? Describe an experiment to study the factors on which the resistance of a conducting wire depends.

Write the $SI$ unit of resistivity.

The $V-I$ graphs for two resistors of the same material and the same radii with lengths $L_{1}$ and $L_{2}$ are shown below. If $L_{1} > L_{2}$, state with reason, which of these graphs represents voltage-current change for $L_{1}$?

You are given a resistance wire of length $50 \,cm$ and a battery of negligible resistance. In which of the following cases is the largest amount of heat generated?

Vedclass Test Series

Exam Paper Generator

Online Exam Module