Physics, asked by farizauraku3577, 11 months ago

If the electric field exceeds the value 3.0 × 106
NC–1, there will be sparking in
air. What is the highest value of charge that a metallic sphere can hold without
sparking in the surrounding air, if the radius of the sphere is 5.0 cm?

Answers

Answered by indersingh1408
1
This situation is known as electrical breakdown, in which the electron in the material can not be bound by nuclei.
E=kQ/r
3x(10)6=(9x(10)9xQ)/5x(10)-2
Q={1.67x(10)-5}C
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