Electric Circuits In which braking back emf exceeds supply voltage? Plugging. Dynamic. Regenerative. None of these. Plugging. Dynamic. Regenerative. None of these. 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 Which of the following has least resistivity? Aluminium. Mercury. Lead. Copper. Aluminium. Mercury. Lead. Copper. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The form factor of sinusoidal alternating current is 1.15. 0. 1. 1.11. 1.15. 0. 1. 1.11. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The current in a chemical cell is a movement of positive hole charges. negative ions only. positive ions only. positive and negative ions. positive hole charges. negative ions only. positive ions only. positive and negative ions. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A series circuit consists of R = 20 Ω, L = 20 mH, and AC supply 60 V with f = 100 Hz. The voltage drop across L is 50.5 V. 31.9 V. 39.1 V. 45.5 V. 50.5 V. 31.9 V. 39.1 V. 45.5 V. ANSWER DOWNLOAD EXAMIANS APP
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