Physics
Grade-8
Easy
Question
Which one of the following is a unit of electric field?
- JC-1
- JC-1m-1
- NC-1
- Vm-1
Hint:
Electric Field = Force × [Charge]-1. Or, E = [M1 L1 T-2] × [I1 T1]-1 = [M1 L1 T-3 I-1].
The correct answer is: NC-1
The SI unit of the electric field is volts per metre (V/m). This unit is equivalent to Newton's per coulomb.
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