Electrostatic and Capacitance A potential of 400 V is applied to a capacitor, the plates of which are 4 mm apart. The strength of electric field is 30 KV/m 10 KV/m 50 KV/m 100 KV/m 30 KV/m 10 KV/m 50 KV/m 100 KV/m ANSWER DOWNLOAD EXAMIANS APP
Electrostatic and Capacitance 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 42 54 37 45 42 54 37 45 ANSWER DOWNLOAD EXAMIANS APP
Electrostatic and Capacitance A 220 Ω resistor is in series with a 2.2 µF capacitor. The time constant is 48 µs 24 µs 2.42 µs 480 µs 48 µs 24 µs 2.42 µs 480 µs ANSWER DOWNLOAD EXAMIANS APP
Electrostatic and Capacitance For closer tolerances which of the following capacitors is usually preferred ? Mica capacitor Ceramic disc capacitor Paper capacitor None of these Mica capacitor Ceramic disc capacitor Paper capacitor None of these ANSWER DOWNLOAD EXAMIANS APP
Electrostatic and Capacitance Which capacitor will be physically smaller for the same ratings ? Paper capacitor None of these Both will be of equal size Ceramic capacitor Paper capacitor None of these Both will be of equal size Ceramic capacitor ANSWER DOWNLOAD EXAMIANS APP
Electrostatic and Capacitance Capacitance increases with Increase in plate area and distance between the plates Reduction in plate area and distance between the plates Increase in plate area and decrease in distance between the plates Decrease in plate area and value of applied voltage Increase in plate area and distance between the plates Reduction in plate area and distance between the plates Increase in plate area and decrease in distance between the plates Decrease in plate area and value of applied voltage ANSWER DOWNLOAD EXAMIANS APP
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