Electric Circuits Which of the following materials has highest electrical conductivity ? Silver. Steel. Aluminium. Copper. Silver. Steel. Aluminium. Copper. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Which of the followings is/are active element? Current source None of these. Both Voltage source Current source None of these. Both Voltage source ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Two resistances R1 and R2 give combined resistances 4.5 Ω and 1 Ω when they are connected in series and parallel respectively. What would be the values of these resistances? 6 Ω and 9 Ω. 3 Ω and 9 Ω. 3 Ω and 6 Ω. 1.5 Ω and 3 Ω. 6 Ω and 9 Ω. 3 Ω and 9 Ω. 3 Ω and 6 Ω. 1.5 Ω and 3 Ω. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A star connected load has three equal impedance each of (40 + j30) Ω If the line current is 5 A then value of line voltage is 250 √3 V. 200 V. 250 V. 250 / √3 V. 250 √3 V. 200 V. 250 V. 250 / √3 V. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Which of the following may be the value of resistivity of copper at absolute zero in ohm-metre? 6.24. 0.020. 3.12. 1.56. 6.24. 0.020. 3.12. 1.56. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A 3 wire, 3 - φ supply feeds a load consisting of three equal resistors. By how much is the load reduced if one of the resistors be removed when the load is in star? 33.33 % of the original load. 25 % of the original load. 66.66 % of the original load. 50 % of the original load. 33.33 % of the original load. 25 % of the original load. 66.66 % of the original load. 50 % of the original load. ANSWER DOWNLOAD EXAMIANS APP
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