Science : Ch 13 – Magnetic Effects of Electric Current

For a current in a long straight solenoid N and S-poles are created at the two ends. Among the subsequent declaration , the incorrect declaration is:

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 magnetic feld inside a long straight solenoid carrying current is:

Magnetic effect of current was identified by:

Which of the following component influence the strength of force experience by a current carrying conduct in a uniform magnetic field?

The instrument that use to direct electric current in the circuit is known as:

The name of the effect being produced by the moving magnet

A coil of many circular turns of wire wrapped in the shape of a cylinder

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

Which of the following is not attracted by a magnet:

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

Commercial electric motors do not use

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