WorksheetsElectromagnetic induction
Total questions: 10
Worksheet time: 9mins
The magnitude of induced current is directly proportional to the rate of _____________ linked with the coil
magnetic field
number of magnetic field lines
change of magnetic field
change of number of magnetic field lines
What is electromagnetic induction?
Two coils C1 and C2 are wrapped around a non conducting cylinder. Coil C1 is connected to a battery and key and C2 with galvanometer G. On pressing the key , current starts flowing in the coil C1. You will observe (a) in the galvanometer when key K is pressed on.
Two coils C1 and C2 are wrapped around a non conducting cylinder. Coil C1 is connected to a battery and key and C2 with galvanometer G. On pressing the key , current starts flowing in the coil C1. You will observe (a) in the galvanometer when current in the coil C1 is switched off
Two coils C1 and C2 are wrapped around a non conducting cylinder. Coil C1 is connected to a battery and key and C2 with galvanometer G. On pressing the key , current starts flowing in the coil C1. You will observe (a) in the galvanometer when the current is passed continuously through coil C1.
An induced emf is produced when a magnet is moved into a coil. The magnitude of induced emf does not depend on:
The speed with which the magnet is moved
The number of turns of the coil
The resistivity of the wire of the coil
The strength of the magnet
A coil of insulated copper wire is connected to a galvanometer forming a loop and a magnet is:
A: Held stationary
B: Moved away along its axis
C: Moved towards along its axis
There will be a induced current in:
A only
A and B only
B and C only
A, B and C
The condition for the phenomena of electromagnetic induction is that there must be a relative motion between
the galvanometer and magnet
the coil of wire and galvanometer
the coil of wire and magnet
the magnet and galvanometer
A magnet is moved towards a coil (i) quickly (ii) slowly. The induced potential difference
more in (i) than in (ii) case
more in (ii) than in (i) case
same in both
can’t say
The direction of induced current is given by
Fleming’s right hand rule
Fleming’s left hand rule
Right hand thumb rule.
Left hand thumb rule.
