MEDIUM
10th CBSE
IMPORTANT
Earn 100

Explain briefly different methods of producing induced emf. 

Important Questions on Magnetic Effects of Electric Current

EASY
10th CBSE
IMPORTANT
ESSENTIALS OF PHYSICS CLASS X>Chapter 4 - Magnetic Effects of Electric Current>Assignment-3>Q 17

A coil of insulated wire is connected to a galvanometer. What would be seen if a bar magnet with its south pole towards one face of the coil is:

(a) moved quickly towards it?

(b) moved quickly away from it?

(c) placed near its one face?

(d) name the phenomena involved.

EASY
10th CBSE
IMPORTANT
ESSENTIALS OF PHYSICS CLASS X>Chapter 4 - Magnetic Effects of Electric Current>Assignment-3>Q 18
Name the scientist who discovered that a moving magnet can be used to generate electric current. With which name is this phenomenon known?
EASY
10th CBSE
IMPORTANT
ESSENTIALS OF PHYSICS CLASS X>Chapter 4 - Magnetic Effects of Electric Current>Assignment-3>Q 19
Explain the meaning of the word 'electromagnetic' and 'induction' in the term electromagnetic induction.
MEDIUM
10th CBSE
IMPORTANT
ESSENTIALS OF PHYSICS CLASS X>Chapter 4 - Magnetic Effects of Electric Current>Assignment-3>Q 20
Explain two ways to induce current in a coil. When is the induced current produced highest? State the rule used to find direction of induced current.
EASY
10th CBSE
IMPORTANT
ESSENTIALS OF PHYSICS CLASS X>Chapter 4 - Magnetic Effects of Electric Current>Assignment-3>Q 21
A coil made of insulated copper wire is connected to a galvanometer. What will happen to the deflection of the galvanometer if a bar magnet is pushed into the coil and then pulled out of it? Give reason for your answer and name the phenomenon involved.
MEDIUM
10th CBSE
IMPORTANT
ESSENTIALS OF PHYSICS CLASS X>Chapter 4 - Magnetic Effects of Electric Current>Assignment-3>Q 22
State Fleming's right hand rule. Give one application of this rule. What is SI unit of induced current?
HARD
10th CBSE
IMPORTANT
ESSENTIALS OF PHYSICS CLASS X>Chapter 4 - Magnetic Effects of Electric Current>Assignment-3>Q 23
With the help of a neat diagram describe how you can generate induced current in a circuit.
MEDIUM
10th CBSE
IMPORTANT
ESSENTIALS OF PHYSICS CLASS X>Chapter 4 - Magnetic Effects of Electric Current>Assignment-3>Q 24

Question Image

A bar magnet is attached to a spring on a smooth horizontal surface as shown in the figure. The bar magnet is displaced and left such that it starts oscillating. A coil is placed with a galvanometer attached to it. What observation will be seen in the deflection of a galvanometer? Which phenomenon is responsible for the observation?