Question

1
a) Prove that
C%. Where jó is magnetic
permeability ió is permittivity of free space and C is
speed of light
b) A polythene piece rubbed with wool is found to have
a negative charge of 3x10''c. Estimate the number of
electron transferred.
c) What is potential gradient? Establish relation between
potential gradient and intensity of electric field.
d) Determine (V. - V) potential difference from
following
ta
A
B
-2
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Answer 1

Answer:

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