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| 1. |
The minimum field required to produce breakdown of air is 3 X 10^6 V / m. Therefore a conducting sphere 10 cm in radius can easily hold a charge of 4X 10^-6 C in air without breakdown. * True False |
| Answer» MAN electric field when ν CHANGE isgiven occurs at the surface ∴E E= r 2 kν ∴ for breakdown not to occurr 2 kq =3×10 −6 ν= 4×10 4 3×10 −6 ×10 −6 ν=0.33×10 −9 cν= 0.33n c | |