Electrostatics

Question: The insulation property of air breaks down at $E = 3 \times {10^6}$ volt/metre. The maximum charge that can be given to a sphere of diameter $5\,m$ is approximately (in coulombs)

1) $2 \times {10^{ - 2}}$

2) $2 \times {10^{ - 3}}$

3) $2 \times {10^{ - 4}}$

4) $2 \times {10^{ - 5}}$

Solution:

Explanation: Explanation

electric-field-potential

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