A capacitor of capacitance 30µF is charged by a constant current of 10mA. If initially, the capacitor was uncharged what is the time taken for the potential difference across the capacitor to reach 300V ?

Related Mcqs:

Electromagnetic waves emitted from antenna are________________?

A. Stationary B. Longitudinal C. Transverse D. All the above...

To find the r.m.s value of an alternating current mathematically we need to have ________________?

A. Mean value of I2 B. Square root of mean value of I2 C. Square root of I2 D. Square of 1/2...

A 10Ω electric heater is connected to a 220V 50Hz mains supply. What is the peak value of the potential difference across the heater element ?

A. 220V B. 220/ 2V C. 110V D. 220 √2V...

A choke is used as a resistance in_________________?

A. DC circuit B. AC circuits C. Both AC and DC circuit D. Full wave rectifier circuit...

At resonance the value of the power factor in an L-C-R series circuit is_______________?

A. Zero B. 2 C. 1 D. Not definite...