Q19 of 25 Page 13

Why and when does a current carrying conductor kept in a magnetic field experience force ? list the factors responsible on which the direction of this force depends? ( CBSE 2008)

The drifting of electrons in the a conductor in a definite direction causes the current to flow through it, When such conductor is placed in an uniform magnetic field, each drifted electron of a conductor experience a magnetic force. This force collectively experience by a conductor as whole . Hence a current carrying conductor in magnetic field experience a force when kept in external magnetic field.


The direction depends upon:


1) Direction of current through the conductor, and


2) Direction of magnetic field.


More from this chapter

All 25 →
17

A coil of insulated copper wire is connected to a galvanometer. What will happen if a bar magnet is

(i) pushed into the coil


(ii) held stationary inside the coil


(iii) withdrawn from inside the coil. ( CBSE 2015)

 18

A compass needle is placed near a current carrying wire. State the observation for the following cases and give reasons for the same in each case.

(A) Magnitude of electric current in the wire is inscreased.


(B) The compass needle is displaced away from the wire. ( CBSE 2007)

 20

How will the magnetic field produced at a point P by a current carrying-circular coil change if we increase the

i. value of current flowing through the coil,


ii. distance of the point P from the coil,


iii. number of turns of the coil?  (CBSE  2009)

 21

What is the difference between direct current generator and alternating current generator? ( CBSE 2014)