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प्रश्न
What is the use of earthing wire?
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उत्तर
- Earthing wire is used to protect one from an electric shock.
- It does this by providing a path for a fault current to flow to the earth.
- It also causes the protective device (fuse) to switch off the electric current to the circuit that has the fault.
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संबंधित प्रश्न
Redraw the circuit of question 1, putting in an ammeter to measure the current through the resistors and a voltmeter to measure the potential difference across the 12 Ω resistors. What would be the readings in the ammeter and the voltmeter?
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fixed resistance
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| (i) | (ii) | (iii) |
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