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 R Ω 8R Ω 4R Ω 2R Ω R Ω 8R Ω 4R Ω 2R Ω ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Instantaneous power in inductor is proportional to the square of the rate of change of current. temperature of the inductor. product of the instantaneous current and rate of change of current. square of instantaneous current. square of the rate of change of current. temperature of the inductor. product of the instantaneous current and rate of change of current. square of instantaneous current. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Which battery is used in aeroplanes? Lead acid battery. None of them. Dry cell battery. Edission cell. Lead acid battery. None of them. Dry cell battery. Edission cell. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Two point charges of 4μC are placed at a distance of 3 cm apart from each other in free space. Force acting on two charges will be 0.02 N 160 N 400 N 100 N 0.02 N 160 N 400 N 100 N ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits When power factor angle is varying, the shape of the current locus is Triangle Circle Semicircle Straight line Triangle Circle Semicircle Straight line ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Four resistances 80 Ohm, 50 Ohm, 25 Ohm and R are connected in parallel. Current through 25 Ohm resistance is 4A. Total current of supply is 10A. The value of R will be 40.25. 76.66. 36.36. 66.66. 40.25. 76.66. 36.36. 66.66. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS