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Is it true that a device of rating $2000 W, 220 V$ will work in a circuit having a fuse that can tolerate current of $5 A$ ?

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True

False

answer is B.

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Detailed Solution

The above statement is false.
Given,
Power,

P = 2000 W

Voltage,

V = 220 V

It is known that the power

(P)

consumed is the product of the voltage

(V)

and the current

(I)

. Mathematically,

P = VI

It can also be written as

I = P / V

On substituting the given values, we get the current as

\Rightarrow I = 2000 / 220

\Rightarrow I = 100 / 11

\Rightarrow I = 9.1 A \approx 9 A

Since a current of

9 A

is flowing through the circuit, the fuse of

5 A

would melt.
The correct statement will be that a device of rating

2000 W, 220 V

will not work in a circuit having a fuse that can tolerate current of

5 A

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