Answer available
Class 10 · Physics · Household Circuits
The colour of the earth wire in the modern convention is:
1 markMediumMCQ
ICSE question bank
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10 questions
- Answer available
Class 10 · Physics · Household Circuits
Name the three wires of a domestic supply and state the colour of each in the modern convention.
2 marksEasyShort answer
- Answer available
Class 10 · Physics · Household Circuits
A house has five 60 W lamps and one 1000 W heater, all working together on a 220 V supply. Calculate the total current drawn and state a suitable fuse rating.
3 marksMediumNumerical
- Answer available
Class 10 · Physics · Household Circuits
What is the function of the earth wire and how does it protect the user?
3 marksMediumShort answer
- Answer available
Class 10 · Physics · Household Circuits
A fuse is always connected in the:
1 markEasyMCQ
- Answer available
Class 10 · Physics · Household Circuits
What is meant by the power rating of an electrical appliance, and what does a marking of 220 V, 60 W tell you?
2 marksEasyShort answer
- Answer available
Class 10 · Physics · Household Circuits
Why is a fuse always connected in the live wire and never in the neutral wire?
2 marksEasyShort answer
- Answer available
Class 10 · Physics · Household Circuits
Why is a three-pin plug preferred to a two-pin plug for a metal-bodied appliance?
3 marksMediumApplication based
- Answer available
Class 10 · Physics · Household Circuits
State two advantages of a miniature circuit breaker over a fuse.
3 marksMediumShort answer
- Answer available
Class 10 · Physics · Household Circuits
Why is the earth wire connected to the metal body of an electrical appliance?
2 marksEasyShort answer