Electric Circuits If L and C both are doubled than damping in above circuit will be halved as compared to previous one. doubled as compared to previous one. None of these remains same. halved as compared to previous one. doubled as compared to previous one. None of these remains same. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A capacitor having a capacitance of 40 μF is connected across 250 V DC source. The charging current will be least when capacitor is half charged. initially. when capacitor is fully charged. when capacitor is almost 25% charged. when capacitor is half charged. initially. when capacitor is fully charged. when capacitor is almost 25% charged. 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 / 2 Ω. 4 / 3 Ω. 6 Ω. 3 / 4 Ω. 3 / 2 Ω. 4 / 3 Ω. 6 Ω. 3 / 4 Ω. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A external resistance R is connected to a cell of internal resistance r, then the current is maximum when None of these R < r. R > r. R = r. None of these R < r. R > r. R = r. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Two battery having unequal emf both a and d can be connected in series only. cannot be connected in series. cannot be connected in parallel. both a and d can be connected in series only. cannot be connected in series. cannot be connected in parallel. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Which of the following ABCD parameters is unit less? A and B. B and C. A and D. A and C. A and B. B and C. A and D. A and C. ANSWER DOWNLOAD EXAMIANS APP
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