Electrostatic and Capacitance The capacitance C is charged through a resistance R. The time constant of the charging circuit is given by 1/RC C/R RC R/C 1/RC C/R RC R/C ANSWER DOWNLOAD EXAMIANS APP
Electrostatic and Capacitance When the plate area of a capacitor increases, The capacitance decreases The capacitance is unaffected The voltage it can withstand increases The capacitance increases The capacitance decreases The capacitance is unaffected The voltage it can withstand increases The capacitance increases ANSWER DOWNLOAD EXAMIANS APP
Electrostatic and Capacitance The breakdown voltage for paper capacitors is usually 2000 to 3000 volts 200 to 1600 volts 20 to 60 volts more than 10000 volts 2000 to 3000 volts 200 to 1600 volts 20 to 60 volts more than 10000 volts ANSWER DOWNLOAD EXAMIANS APP
Electrostatic and Capacitance Two series capacitors (one 2 µF, the other of unknown value) are charged from a 24 V source. The 2 µF capacitor is charged to 16 V and the other to 8 V. The value of the unknown capacitor is 4 µF 8 µF 1 µF 2 µF 4 µF 8 µF 1 µF 2 µF ANSWER DOWNLOAD EXAMIANS APP
Electrostatic and Capacitance A 4.7 MΩ resistor is in series with a 0.015 µF capacitor. The combination is across a 12 V source. How long does it take the capacitor to fully charge? 70.5 ms 3.5 ms 352 ms 35 ms 70.5 ms 3.5 ms 352 ms 35 ms ANSWER DOWNLOAD EXAMIANS APP
Electrostatic and Capacitance The unit of dielectric strength is given by V/m V2/m m/V2 m/V V/m V2/m m/V2 m/V ANSWER DOWNLOAD EXAMIANS APP
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