MEDIUM
10th Kerala Board
IMPORTANT
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There is only one type of generator AC generator. Write down your response statement.

Important Questions on Electromagnetic Induction

EASY
10th Kerala Board
IMPORTANT
Physics Standard X Part 1>Chapter 3 - Electromagnetic Induction>Let us assess>Q 11
Electromagnetic induction is 
EASY
10th Kerala Board
IMPORTANT
Physics Standard X Part 1>Chapter 3 - Electromagnetic Induction>Let us assess>Q 12
Which is the device used to generate electricity?
MEDIUM
10th Kerala Board
IMPORTANT
Physics Standard X Part 1>Chapter 3 - Electromagnetic Induction>Let us assess>Q 13
Write down the similarities and differences in the structure of an AC generator and a DC generator.
MEDIUM
10th Kerala Board
IMPORTANT
Physics Standard X Part 1>Chapter 3 - Electromagnetic Induction>Let us assess>Q 14
A conductor hung horizontally in the north-south direction is connected to a galvanometer. The conductor is situated in a magnetic field acting in the east-west direction. In which direction should you move the conductor if maximum current is to be induced in the conductor in the north-south direction? Justify your answer.
a) Towards east       b) Downwards
c) Upwards              d) Towards north
EASY
10th Kerala Board
IMPORTANT
Physics Standard X Part 1>Chapter 3 - Electromagnetic Induction>Let us assess>Q 17

In connection with the working of a microphone, a few statements are given in boxes. Arrange them in the proper sequence.
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EASY
10th Kerala Board
IMPORTANT
Physics Standard X Part 1>Chapter 3 - Electromagnetic Induction>Let us assess>Q 18
Thick insulated copper wires are used in the primary coil of a step-up transformer and in the secondary of a step-down transformer. What is the necessity of this?
MEDIUM
10th Kerala Board
IMPORTANT
Physics Standard X Part 1>Chapter 3 - Electromagnetic Induction>Let us assess>Q 19
Which situation causes short circuit?
HARD
10th Kerala Board
IMPORTANT
Physics Standard X Part 1>Chapter 3 - Electromagnetic Induction>Let us assess>Q 20
What is the role of earthing wire in a household circuit?