Electrostatic and Capacitance Air capacitors are generally available in the range 10 to 400 pF 100 to 500 pF 1 to 20 pF 200 to 300 pF 10 to 400 pF 100 to 500 pF 1 to 20 pF 200 to 300 pF ANSWER DOWNLOAD EXAMIANS APP
Electrostatic and Capacitance The potential gradient across the material of low permittivity is than across the material of high permittivity. greater None of these smaller both (A) and (B) greater None of these smaller both (A) and (B) ANSWER DOWNLOAD EXAMIANS APP
Electrostatic and Capacitance A capacitance of 100 fiF is connected in series with a resistance of 8000 £2. The time constant of the circuit is 1.2 s 0.6 s 0.8 s 0.4 s 1.2 s 0.6 s 0.8 s 0.4 s ANSWER DOWNLOAD EXAMIANS APP
Electrostatic and Capacitance The dissipation factor of a good dielectric is of the order of 0.2 2.0 0.002 0.0002 0.2 2.0 0.002 0.0002 ANSWER DOWNLOAD EXAMIANS APP
Electrostatic and Capacitance Five time constants are required for a capacitor to charge fully or discharge fully. 1 1 ANSWER DOWNLOAD EXAMIANS APP
Electrostatic and Capacitance An uncharged capacitor and a 1 kΩ resistor are connected in series with a switch and a 6 V battery. At the instant the switch is closed, the voltage across the capacitor is 0 V 3 V 6 V 2 V 0 V 3 V 6 V 2 V ANSWER DOWNLOAD EXAMIANS APP