Question

The belt of an electrostatic generator is 50 cm wide and
travels at 30 cm/sec. The belt carries charge into the sphere
at a rate corresponding to 10⁻⁴ ampere. What is the surface
density of charge on the belt.
(a) 6.7´10⁻⁵Cm⁻² / s (b) 6.7´10⁻⁴ Cm⁻² / s
(c) 6.7´10⁻⁷Cm⁻² / s (d) 6.7´10-8Cm⁻² / s

Answer 1

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