Embibe Experts Solutions for Chapter: Current Electricity, Exercise 1: Exercise

The graph between current $\left(I\right)$ and the potential difference in the experimental verification of Ohm's law were drawn by four students as shown in the below figure. Which one of the following is correct?

A battery is charged by a supply of $100 \mathrm{V}$as shown in the figure. The charging current is $1.0 \mathrm{A}.$The value of $R$is,

There is a current of $1.0 \mathrm{A}$ in the circuit shown below. What is the resistance of P?

In the circuit shown in the figure the potential difference between $X$ and $Y$ will be

What is Seebeck effect?

What is Thomson effect?

Three identical lamps each having a resistance $R$ are connected to the battery of emf as shown in the figure.

Calculate the power delivered to the circuit when $S$ is open and closed. Does the power delivered to the circuit decreases, increases or remain same?

The resistance of a nichrome wire at $0^{\mathrm{o}}\mathrm{C}$ is $10 \mathrm{\Omega }$. If temperature coefficient of resistance is $0.004/{}^{\mathrm{o}}\mathrm{C}$, find its resistance at boiling point of water.