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Electrostatic and Capacitance

Electrostatic and Capacitance
The unit of capacitance is

Farady/m
Farady
Ohm
Hennry

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Electrostatic and Capacitance
The electric field intensity at a point situated 4 meters from a point charge is 200 N/C. If the distance is reduced to 2 meters, the field intensity will be

1600 N/C
1200 N/C
800 N/C
2000 N/C

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Electrostatic and Capacitance
A 0.00022 F capacitor equals how many micro-farads?

22 µF
22,200 µF
220 µF
2,200 µF

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Electrostatic and Capacitance
Which of the following is not a vector ?

Electric field
Electric potential
Angular momentum
Linear momentum

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Electrostatic and Capacitance
The absolute permittivity of free space is given by

8.854 x 10?12 F/m
8.854 x 1(T9 F/m)
8.854 x KT11 F/m
8.854 x 1(T10 F/m)

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Electrostatic and Capacitance
For making a capacitor, it is better to select a dielectric having

Permittivity same as that of air
High permeability
Permittivity slightly more than that of air
Low permeability

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