Electric Circuits Which of the following materials has highest electrical conductivity ? Copper. Aluminium. Steel. Silver. Copper. Aluminium. Steel. Silver. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The ratio of the resistance of a 200 W, 230 V lamp to that of a 100 W, 115 V lamp will be 4. 2. 0.5. 0.25. 4. 2. 0.5. 0.25. 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 6 Ω. 3 / 4 Ω. 4 / 3 Ω. 3 / 2 Ω. 6 Ω. 3 / 4 Ω. 4 / 3 Ω. 3 / 2 Ω. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits In question no.3, which of the following is true ? iL(0) = ic (0). i(0+)= iL(0+). ic (0+) = i(0+). None of these. iL(0) = ic (0). i(0+)= iL(0+). ic (0+) = i(0+). None of these. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits What is the relation between line voltage and phase voltage in case of delta connection? VL = 1/ √3 VP. None of these. VL = VP. VL = √3 VP. VL = 1/ √3 VP. None of these. VL = VP. VL = √3 VP. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits In the circuit given below the value of resistance Req is 25 Ω. 11.86 Ω. 10 Ω. 11.18 Ω. 25 Ω. 11.86 Ω. 10 Ω. 11.18 Ω. ANSWER DOWNLOAD EXAMIANS APP
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