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Q.

An electric appliance gets its power from:

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a

I2V

b

IV

c

IR2

d

V2R

answer is B.

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Detailed Solution

 Resistance is a property of electrically charged objects and materials that inhibits electricity from flowing through them.

It is denoted by R. The SI unit of resistance is the ohm (Ω).

Power is the rate at which an electric current does work. P is an abbreviation for it. The watt is the SI power unit (W).

We know that: Power P=VI=V2R=I2R

Here I is the current flowing and  V is the potential difference across resistance, and R represents resistance

An electric device draws its power from:

Power P=VI=IV

Therefore, choice 2 is accurate.

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