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Q.

The unit of electrical resistance is.


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a

Ampere

b

Volt

c

Coulomb

d

Ohm 

answer is D.

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Detailed Solution

The SI unit of resistance is Ohm, symbolized by omega, Ω. The property of a conductor due to which it opposes the flow of current through it is known as resistance. The resistance of a conductor numerically equals the ratio of potential difference across its ends to the current flowing through it.
Constant R= Potential differencecurrent
Or       R= VI
The resistance of conductor depends upon the following: length, thickness, nature of material and temperature of the conductor.
 
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