GK
PHYSICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The S.I. unit for electric field is ____ ?
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nC
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n/C
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N/m
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none of the above
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Explanation:
Detailed explanation-1: -S.I unit of electric field is Newton per coulomb. Therefore, the S.I unit of electric field is N/C.
Detailed explanation-2: -The SI unit of F is 1 Newton (N) and the unit of C is 1 coulomb (C). So, E = 1 N/1C = NC-1. From the above, we can see that 1 V/m is equivalent to 1 N/C. This is why both volts per meter and newtons per coulomb are used to represent the strength of an electric field.
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