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Ohm's Law in Scalar Form

A zener diode...

Question

A zener diode is rated as $1 W$ , if given breakdown voltage is $6.2 V$ then max current it can hold is

A

224 m A

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B

161 m A

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C

239 m A

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D

none of the above

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Solution

The correct option is B $161 m A$
Power $= V \times I$
$I = \frac{P}{V} = \frac{1 W}{6.2 V}$
$= 0.1612 \times 1000 = 161$ mA.

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