Electric Circuits When resistance element of a heater fuses and then we reconnect it after removing a portion of it, the power of heater will decrease. none of these. increase. remain constant. decrease. none of these. increase. remain constant. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The resistance of a strip of copper of rectangular cross section is 2 Ω. A metal of resistivity twice that of a copper is coated on its upper surface to a thickness equal to that of copper strip. The resistance of composite strip will be 3 / 4 Ω. 4 / 3 Ω. 6 Ω. 3 / 2 Ω. 3 / 4 Ω. 4 / 3 Ω. 6 Ω. 3 / 2 Ω. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Three identical resistor are connected in star across a 3 phase 550 V supply dissipating a total power of 300 W the line current is ____________ A. 1 2.56 0.5 3.149 1 2.56 0.5 3.149 ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Given network is having N nodes and b branches, then number of individual loops are N. b - N + 1. N - 1. b - N - 1. N. b - N + 1. N - 1. b - N - 1. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A capacitor passes a current of 12.6 mA when supplied with 20 V ac with a frequency of 1000 Hz. The capacitance will be 0.001 μF. 0.01 μF. 0.1 μF. 1 μF. 0.001 μF. 0.01 μF. 0.1 μF. 1 μF. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits What is the reactive power in AC operation? Real power × cosθ. Apparent power × cosθ. Apparent power × sinθ. Real power × sinθ. Real power × cosθ. Apparent power × cosθ. Apparent power × sinθ. Real power × sinθ. ANSWER DOWNLOAD EXAMIANS APP
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