Exercise

Author:NCERT

NCERT Science Solutions for Exercise

Simple step-by-step solutions to Exercise questions of Magnetic Effects of Electric Current from Science Textbook of Competency Based Questions for Class X. Also get 3D topic explainers, cheat sheets, and unlimited doubts solving on EMBIBE.

Questions from Exercise with Hints & Solutions

MEDIUM
10th CBSE
IMPORTANT

The structure shown below has several uses. Which one of the following is a correct use of the given structure:

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EASY
10th CBSE
IMPORTANT

Which of these magnets has the strongest magnetic field?

EASY
10th CBSE
IMPORTANT

Which of these statements is true for the lines of a magnetic field?

EASY
10th CBSE
IMPORTANT

Label the north pole and south pole of the electromagnet in the diagram.

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EASY
10th CBSE
IMPORTANT

Which of these devices works due to the magnetic effect of electric current?

EASY
10th CBSE
IMPORTANT

The digram below shows the magnetic field lines due to a current in a straight conductor.

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Something was done to the current because of which the magnetic field lines changed  as shown below.

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What was done to the current?

EASY
10th CBSE
IMPORTANT

Quadrupole magnets consist of groups of four magnets and are used in particle accelerators.

The image below shows four bar magnets configured to produce a quadrupole. The magnetic field lines between the magnets is marked.

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What are the poles of the magnets at P,Q R and S ?

HARD
10th CBSE
IMPORTANT

A simplified diagram of an electric motor is as shown. The loop of wire is horizontal in a horizontal magnetic field. 

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In which direction is the force on side X of the wire loop?