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A current of $5 amperes$ flows through a wire whose ends are at a potential difference of $3 volts$ . Calculate the resistance of the wire.

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0.3 Ω

0.6 Ω

0.9 Ω

0.15 Ω

answer is B.

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Detailed Solution

A current of

5 amperes

flows through a wire whose ends are at a potential difference of

3 volts

. The resistance of the wire is

0.6 Ω

.
Given,

Current, I = 5 A

Potential Difference, V = 3 V

We know that Ohm’s law,

V = I R

Putting the values, we get

3 = 5 \times R

⸫

R = 0.6 Ω

.
Hence,

0.6 ohms

is the required value of resistance of the wire.

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