When a charge of $20 C$ is taken from one point to another separated by a distance of $0.2 m$,work of $2 J$ is required to be done. What is the potential difference between the two points?
- A$2 \times 10^{-2} V$
- B$4 \times 10^{-4} V$
- C$8 V$
- D$0.1 V$
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