Electric Circuits A wire of resistance R has it length and cross - section both doubled. Its resistance will become 0.5R. 2R. 4R. R. 0.5R. 2R. 4R. R. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A capacitor of 50 microfarad is connected in series with a resistance of 120 Ω. If above circuit is connected across 240 V, 50 Hz 1 - φ supply. Find the capacitive reactance? 0.015 Ω. 1.765 Ω. 135.86 Ω. 63.7 Ω. 0.015 Ω. 1.765 Ω. 135.86 Ω. 63.7 Ω. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits When power factor angle is varying, the shape of the current locus is Straight line Semicircle Triangle Circle Straight line Semicircle Triangle Circle ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits In question no.3, which of the following is true ? None of these. 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+). ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits If the sheet of a backelite is inserted between the plates of an air capacitor, the capacitance will remains unchanged. decrease. increase. becomes zero. remains unchanged. decrease. increase. becomes zero. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Specific resistance is measured in ohm/cm. ohm. ohm - cm. mho. ohm/cm. ohm. ohm - cm. mho. ANSWER DOWNLOAD EXAMIANS APP
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