Embibe Experts Solutions for Chapter: Magnetic Effect of Current, Exercise 1: KEAM 2019

A particle of mass $m$ and charge $q$ with an initial velocity $v$ is subjected to a uniform magnetic field $B$ along the vertical direction. The particle will

An electron is moving with a velocity $2\times {10}^{6}m/s$ along positive $x$ -direction in the uniform electric field of $8\times {10}^{7}V/m$ applied along positive $y$ -direction. The magnitude and direction of a uniform magnetic field (in tesla) that will cause the electrons to move undeviated along its original path is

Consider two parallel current carrying conductors separated by a distance. Which one of the following statements is true ?

The magnetic field at the centre of a circular coil of $50$ turns and radius $10\mathrm{cm}$ carrying a current of $1\mathrm{A},$ in tesla is

Consider a circular loop of radius $R$ on the $xy$ - plane carrying a steady current anticlockwise. The magnetic field at the center of the loop is given by

The magnitude of a magnetic field at the centre of a circular coil of radius $R$ , having $N$ turns and carrying a current $I$ can be doubled by changing

A long solenoid with $500$ turns per unit length carries a current of $1.5 \mathrm{A}$. The magnetic induction at one of the ends of the solenoid on its axis is nearly

A coil of $50$ turns carrying a current of $2\mathrm{A}$ in a magnetic field of $0.5\mathrm{T}$. The torque acting on the coil is