Electric Circuits When AC flows through a pure capacitance then the current leads the emf by - 90o. is in phase with emf. leads the emf by 90o. lags the emf by 90o. leads the emf by - 90o. is in phase with emf. leads the emf by 90o. lags the emf by 90o. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The resistance of a conductor of diameter d and length l is R Ω. If the diameter of the conductor is halved and its length is doubled, the resistance will be 4R Ω R Ω 8R Ω 2R Ω 4R Ω R Ω 8R Ω 2R Ω ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The frequency of EMF generated by a generator depends upon its nature of supply. number of poles. both speed and number of poles. speed. nature of supply. number of poles. both speed and number of poles. speed. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits For the network shown in figure, the value of current through 8Ω resistor is 4.8 A. 2.4 A. 1.5 A. 1.2 A. 4.8 A. 2.4 A. 1.5 A. 1.2 A. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Which quantity should be measured by the voltmeter ? Power Current Speed Voltage Power Current Speed Voltage ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A p.d. of 300 V is applied across series combination of 3 μF and 9 μF capacitors. The charge on each capacitor is ___________________ μC. 7.5. 675. 3600. 240. 7.5. 675. 3600. 240. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS