Embibe Experts Solutions for Chapter: Magnetic Effect of Current, Exercise 1: COMEDK UGET 2014

Inside a cyclotron, a charged particle is subjected to both an electric field and a magnetic field. It gains kinetic energy due to

A charged particle moves in a uniform magnetic field. The velocity of the particle at some instant makes an acute angle with the magnetic field. The path of the particle will be

A proton and an $\alpha$-particle are projected with the same kinetic energy at right angles to a uniform magnetic field. The ratio of the radii of their paths is

Two infinite straight wires $A \& B,1m$ apart are carrying currents of $I$ and $4 I$ respectively. The distance of the points at which the resultant force is zero is

The graph showing the variation of the magnetic field strength (B) with distance (r) from a long current carrying conductor is

A certain length of insulated wire can be bent to form either a single circular loop (case I) or a double loop of smaller radius (case II). When the same steady current is passed through the wire, the ratio of the magnetic field at the centre in case I to that in case II is