Draw the standard symbol used to represent a bulb.

Important Questions on Electric Current and Circuits

MEDIUM

7th Jammu and Kashmir Board

IMPORTANT

SCIENCE A TEXTBOOK FOR CLASS 7>Chapter 14 - Electric Current and Circuits>LET’S ANSWER>Q (II)

Draw the standard symbol used to represent a wire.

EASY

7th Jammu and Kashmir Board

IMPORTANT

SCIENCE A TEXTBOOK FOR CLASS 7>Chapter 14 - Electric Current and Circuits>ELECTRIC BUZZER

Nowadays, we use electric buzzers and music bells, which work on a principle different from that of the electric bell described here. Buzzers are of different types. Can you think of some places where you use electric buzzers?

EASY

7th Jammu and Kashmir Board

IMPORTANT

SCIENCE A TEXTBOOK FOR CLASS 7>Chapter 14 - Electric Current and Circuits>LET’S ANSWER>Q 2

The strength of an electromagnet does not depend on the number of turns on the coil wrapped around it.

EASY

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IMPORTANT

SCIENCE A TEXTBOOK FOR CLASS 7>Chapter 14 - Electric Current and Circuits>LET’S ANSWER>Q 4

In an electric bell, the hammer hits the gong when the electromagnet attracts the soft iron strip.

EASY

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IMPORTANT

SCIENCE A TEXTBOOK FOR CLASS 7>Chapter 14 - Electric Current and Circuits>EXERCISES>Q A

A circuit diagram is 

EASY

7th Jammu and Kashmir Board

IMPORTANT

SCIENCE A TEXTBOOK FOR CLASS 7>Chapter 14 - Electric Current and Circuits>EXERCISES>Q B

An electrical fuse is 

EASY

7th Jammu and Kashmir Board

IMPORTANT

SCIENCE A TEXTBOOK FOR CLASS 7>Chapter 14 - Electric Current and Circuits>EXERCISES>Q B

When we bring a magnetic compass near a current carrying wire, 

EASY

7th Jammu and Kashmir Board

IMPORTANT

SCIENCE A TEXTBOOK FOR CLASS 7>Chapter 14 - Electric Current and Circuits>EXERCISES>Q B

 When we bring a magnetic compass near a current carrying wire,