Electric Circuits For the circuit shown below the value of R is adjusted so as to make the current in RL equal to zero. Calculate the value of R. 2 Ω. 1 Ω. 3 Ω. 4 Ω. 2 Ω. 1 Ω. 3 Ω. 4 Ω. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits An ideal constant voltage source has _______________ internal impedance whereas a constant current source has ____________ internal impedance. infinite, infinite infinite, zero zero, zero zero, infinite infinite, infinite infinite, zero zero, zero zero, infinite ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Which of the following materials has highest electrical conductivity ? Steel. Silver. Aluminium. Copper. Steel. Silver. Aluminium. Copper. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Millman theorem yields equivalent impedance. voltage source. current source. both ‘c’ and ‘d’ . impedance. voltage source. current source. both ‘c’ and ‘d’ . ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A capacitor is connected to supply with switch and the switch is connected between capacitor and supply. Initially switch is open at time zero, and then switch is closed. Then how capacitor behaves at time t = 0+? dielectric losses decreases. short circuit. open circuit. dielectric losses increases. dielectric losses decreases. short circuit. open circuit. dielectric losses increases. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A certain network consists of large number of ideal linear resistances, one of which is designated as R and two constant ideal source. The power consumed by R is P1 when only the first source is active and P2 when only second source is active. In both sources are active simultaneously then the power consumed by R is (P1 ± P2 )2. √P1 ± √P2. (√P1 ± √P2)2. P1 ± P2 . (P1 ± P2 )2. √P1 ± √P2. (√P1 ± √P2)2. P1 ± P2 . ANSWER DOWNLOAD EXAMIANS APP
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