A point charge of +1 nC is placed in a space with a permittivity

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A point charge of +1 nC is placed in a space with a permittivity of 8.85 × 10^–12 F/m as shown in figure. The potential difference VPQ between two points P and Q at distance of 40 mm and 20 mm respectively from the point charge is—

1. 0.22 kV
2. – 225 V
3. – 2.24 kV
4. 15 V

Correct Option: C

NA