Q25 of 330 Page 19

Ohm’s law gives a relationship between:

Ohm’s law gives a relationship between current and potential difference.

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23

An electrical appliance has a resistance of 25 Ω. When this electrical appliance is connected to a 230 V supply line, the current passing through it will be :

 24

When a 4Ω resistor is connected across the terminals of a 12 V battery, the number of coulombs passing through the resistor per second is :

 26

The unit of electrical resistance is :

 27

The substance having infinitely high electrical is called: