EASY
10th CBSE
IMPORTANT
Earn 100
Draw the labelled diagram of an A.C. generator. With the help of this diagram, explain the construction and working of an A.C. generator.
Important Questions on Magnetic Effect of Electric Current
EASY
10th CBSE
IMPORTANT
The phenomenon of electromagnetic induction is:
EASY
10th CBSE
IMPORTANT
The essential difference between an AC generator and a DC generator is that:
EASY
10th CBSE
IMPORTANT
Each one of the following changes will increase emf (or voltage) in a simple generator except:
EASY
10th CBSE
IMPORTANT
The north pole of a long bar magnet was pushed slowly into a short solenoid connected to a galvanometer. The magnet was held stationary for a few seconds with the north pole in the middle of the solenoid and then withdrawn rapidly. The maximum deflection of the galvanometer was observed when the magnet was:
EASY
10th CBSE
IMPORTANT
An electric generator converts:
EASY
10th CBSE
IMPORTANT
A d.c. generator is based on the principle of:
EASY
10th CBSE
IMPORTANT
An induced current is produced when a magnet is moved into a coil. The magnitude of induced current does not depend on:
EASY
10th CBSE
IMPORTANT
The frequency of direct current (d.c.) is: