Subject Experts Solutions for Chapter: Magnetic Effects of Electric Current and Magnetism, Exercise 1: Practice Exercise

Which one among the following properties of a proton may change, while it moves freely in a magnetic field? 

Van de Graaff generator is used for

The phenomenon of electromagnetic induction implies a production of induced :

A force $F$, acting on an electric charge $q$, in presence of an electromagnetic field, moves the charge parallel to the magnetic field with velocity $v$. Then, $F$ is equal to (where, $E$ and $B$ are electric field and magnetic field, respectively)

Statement $\mathrm{I}$ It is not necessary that every bar magnet has one North pole and one South pole.

Statement $\mathrm{II}$ Magnetic poles occur in pair.

If a charged particle $(+q)$ is projected with certain velocity parallel to the magnetic field, then it will 

Two long wires each carrying a $DC$ current in the same direction are placed close to each other. Which one of the following statements is correct?

Magnetic meridian is an imaginary