1.
Substances that have constant resistance over a wide range of voltages are

2.
A resistor having resistance 6.2Ω is connected across a battery of 5 V using a wire of negotiable resistance. Current passes through the resistor are 0.4 A. The total power produced by the battery is

3.
As compare to short wires, long wires have

4.
The device that disconnects the supply automatically if current exceeds the normal value is known as

5.
As per Ohm's law, V (potential difference) is equal to

6.
Ohm is denoted by the symbol

7.
The wire maintained at zero potential by connecting it to the Earth at the power station itself is called

8.
Watt is equal to one

9.
The resistance and length of wire are

10.
All electric wires are well insulated for the purpose of safety with some

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