Embibe Experts Solutions for Chapter: Current Electricity, Exercise 1: Gujarat Board-2018

Calculate the potential difference plate $\mathrm{A} \mathrm{and} \mathrm{B}$ of the capacitor in the following circuit

The unit of conductance of the material of the given conductor is _____.

The figure shows a part of a closed circuit. If the current flowing through it is $2 \mathrm{A}$ then $V_B-V_A$ is _______

The resistance of a $10 \mathrm{m}$ long potentiometer wire is $20 \mathrm{\Omega }$. It is connected in series with a $3 \mathrm{V}$ battery and $10 \mathrm{\Omega }$ resistor. The potential difference between two points separated by distance $0.3 \mathrm{m}$ is equal to ______.

Two bulbs of $220 \mathrm{V}$ and $100 \mathrm{W}$ are first connected in parallel and then in series with a supply of $220 \mathrm{V}$. Total power in both the cases will be ______ respectively.

Five pure inductors each of $3 \mathrm{H}$ are connected as shown in figure. The equivalent inductance of this connection between points $\mathrm{A}$ and $\mathrm{B}$ is _____.

Derive the expression to find the unknown resistance in the balance condition of wheatstone bridge

A cylindrical wire having $10 \mathrm{\Omega }$ resistance is stretched to increase its length by $10\%$. Calculate its new resistance.