Explain ring system of electric wiring and its advantages.

Important Questions on Electrical Power and Household Circuits

EASY

10th ICSE

IMPORTANT

S CHAND'S ICSE PHYSICS BOOK 2>Chapter 9 - Electrical Power and Household Circuits>QUESTIONS>Q 1

Give one example when electrical energy converts into light and heat energy.

EASY

10th ICSE

IMPORTANT

S CHAND'S ICSE PHYSICS BOOK 2>Chapter 9 - Electrical Power and Household Circuits>QUESTIONS>Q 1

Give one example when electrical energy converts into sound energy.

EASY

10th ICSE

IMPORTANT

S CHAND'S ICSE PHYSICS BOOK 2>Chapter 9 - Electrical Power and Household Circuits>QUESTIONS>Q 2

Derive formula $E=I^{2}Rt$ where the terms have their usual meanings.

EASY

10th ICSE

IMPORTANT

S CHAND'S ICSE PHYSICS BOOK 2>Chapter 9 - Electrical Power and Household Circuits>QUESTIONS>Q 7

Name the material used in a fuse wire.

EASY

10th ICSE

IMPORTANT

S CHAND'S ICSE PHYSICS BOOK 2>Chapter 9 - Electrical Power and Household Circuits>QUESTIONS>Q 8

Why a fuse is always connected to live wire?

EASY

10th ICSE

IMPORTANT

S CHAND'S ICSE PHYSICS BOOK 2>Chapter 9 - Electrical Power and Household Circuits>QUESTIONS>Q 18

What is the use of local earthing provided near the electric meter?

EASY

10th ICSE

IMPORTANT

S CHAND'S ICSE PHYSICS BOOK 2>Chapter 9 - Electrical Power and Household Circuits>QUESTIONS>Q 19

What is the use of earthing in an electric appliance?

EASY

10th ICSE

IMPORTANT

S CHAND'S ICSE PHYSICS BOOK 2>Chapter 9 - Electrical Power and Household Circuits>QUESTIONS>Q 23

Why is the earthing pin always longer than the other two pins?