Electric Circuits When AC flows through a pure capacitance then the current 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. leads the emf by - 90o. is in phase with emf. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits By which of the following elements transients will not occur? R L C All of these R L C All of these ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Common impurity in battery electrolyte is sodium chloride. lead sulfate. iron. dust. sodium chloride. lead sulfate. iron. dust. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Which of the following has positive temperature coefficient ? Gold. Rubber. Paper. Germanium. Gold. Rubber. Paper. Germanium. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A balanced star connected load with impedance of 30j - 300 Ω is supplied from a 3 - phase, 4-wire, 173 V system, the voltages to neutral being 100j -900, 100j - 300 and 100j -1500 V. The current in neutral wire is zero. 50 A. 5 A. 8.85 A. zero. 50 A. 5 A. 8.85 A. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits If the length of a wire of resistance R is uniformly stretched to n times its original value, what will be its new resistance n2R. n2 / R. nR . R / n2. n2R. n2 / R. nR . R / n2. ANSWER DOWNLOAD EXAMIANS APP
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