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Electrostatics

The time constant and R-C circuit may also be defined as the time during which the charging current falls to ________ percent of its initial maximum value

Electrostatics /
The time constant and R-C circuit may also be defined as the time during which the charging current falls to ________ percent of its initial maximum value

A. 37
B. 42
C. 63
D. 73

The time constant and R-C circuit may also be defined as the time during which the charging current falls to ________ percent of its initial maximum value Read More »

Electrostatics

A single core cable used on 33000 V has conductor diameter 10 mm and the internal diameter of sheath 25 mm. The maximum electrostatic stress in the cable is____________?

Electrostatics /
A single core cable used on 33000 V has conductor diameter 10 mm and the internal diameter of sheath 25 mm. The maximum electrostatic stress in the cable is____________?

A. 62 x 105 V/m
B. 72 x 105 V/m
C. 82 x 105 V/m
D. 92 x 105 V/m

A single core cable used on 33000 V has conductor diameter 10 mm and the internal diameter of sheath 25 mm. The maximum electrostatic stress in the cable is____________? Read More »

Electrostatics

A mica capacitor and a ceramic capacitor both have the same physical dimensions. Which will have more value of capacitance _______?

Electrostatics /
A mica capacitor and a ceramic capacitor both have the same physical dimensions. Which will have more value of capacitance _______?

A. Ceramic capacitor
B. Mica capacitor
C. Both will have identical value of capacitance
D. It depends on applied voltage

A mica capacitor and a ceramic capacitor both have the same physical dimensions. Which will have more value of capacitance _______? Read More »

Electrostatics