Science : Ch 13 – Magnetic Effects of Electric Current

Fleming’s Right-hand rule gives:

A current-carrying conductor is clench in totally vertical direction. In order to produce a clockwise magnetic feld around the conductor, the current should passed in the conductor:

The magnetic field lines:

The magnetic feld inside a long straight solenoid carrying current is:

A current through a horizontal power line flows from south to North direction. The direction of magnetic field line 0.5m above it is:

When current is parallel to magnetic field, then force experience by the current carrying conductor placed in uniform magnetic field is

Direction of rotation of a coil in electric motor is intent by:

In electric motor, to make the coil rotating constantly in the identical direction, current is reversed in the coil after every half rotation by a device called:

A magnet is moved towards a coil (i) quickly (ii) slowly. The induced potential difference:

Overloading is caused to:

Example of permanent magnet is

To determine the direction of force experienced by a current carrying conductor placed in a uniform magnetic feld.

The change in magnetic feld lines in a coil is the cause of induced electric current in it. Name the underlying phenomenon.

An electron moves with a speed v along positive direction of the x-axis. If a magnetic feld B acts along the positive y-direction, then the force on the electron will act along

The deflection of the galvanometer becomes zero the moment the motion of