Science : Ch 13 – Magnetic Effects of Electric Current

Fleming’s Right-hand rule gives:

Commercial electric motors neglect :

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:

Which of the subsequent is not attracted by a magnet:

The magnetic field lines:

A soft iron bar is introduced inside the current carrying solenoid. The magnetic field inside the solenoid:

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

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

The name of the effect being produced by the moving magnet

when an iron core is inserted into a current carrying solenoid

The magnetic feld inside a long straight solenoid carrying current is

The phenomenon discovered by Faraday.

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

Two magnetic feld lines never intersect because the resultant force on a north pole at any point can only be in

You are holding the current-carrying wire in your right hand so that your thumb points in the direction of current, then the direction in which your fingers encircle the wire will give the direction of the magnetic feld lines around the wire.explain