Embibe Experts Solutions for Chapter: Current Electricity, Exercise 1: GUJCET 2018

Brown, Red and Orange coloured bands on a Carbon resistor are followed by silver band. The value of resistor is ________.

The dimensional formula of mobility is _____

What is the current in the $4 \mathrm{\Omega }$ resistor when switch $S_1$ is open and switch $S_2$ is closed in the given circuit?

When the temperature of a conductor increases, the ratio of conductivity and resistivity _____

In the above circuit, if the current through $10 \mathrm{\Omega }$ resistor is $2.5 \mathrm{A}$, value of $R$ is ______.

You are given $10$ resistors each of resistance $2 \mathrm{\Omega }.$ First they are connected to obtain possible minimum resistance. Then they are connected to obtain possible maximum resistance. The ratio of maximum and minimum resistance is ______

A galvanometer of resistance $50 \mathrm{\Omega }$ giving full scale deflection for a current of $10$ milliampere is to be changed into a voltmeter of range $100 \mathrm{V}$.

A resistance of _____ $\mathrm{\Omega }$ has to be connected in series with the galvanometer.