Electric Circuits Which of the following has positive temperature coefficient ? Rubber. Gold. Germanium. Paper. Rubber. Gold. Germanium. Paper. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A 20 μF capacitor and 200 W, 220 V lamp is connected in series across a 220 V alternating supply. In which frequency of the supply the lamp will glow dimmest? 10 Hz. 1 Hz. 1000 Hz. 100 Hz. 10 Hz. 1 Hz. 1000 Hz. 100 Hz. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The Laplace Transform of a shifted unit step f (t) = U (t-a) is (e-as)/s. s(1-e-as). e-as. se-as. (e-as)/s. s(1-e-as). e-as. se-as. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits If a resistor and a capacitor are connected to form series R - C circuit across a voltage source. If frequency of voltage source increases the current decreases. the current decreases abruptly. the current increases. the current remain unaltered. the current decreases. the current decreases abruptly. the current increases. the current remain unaltered. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits When the internal resistance of a cell is large compared to the external resistance in the circuit then high current can flow through the external resistance by grouping the cells as in series. in either series or parallel. in parallel. mixed. as in series. in either series or parallel. in parallel. mixed. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits While comparing magnetic field and electric circuits, the point of dissimilarity exists while considering reluctance and resistance. flux and current flow. permeance and conductance. mmf and emf. reluctance and resistance. flux and current flow. permeance and conductance. mmf and emf. ANSWER DOWNLOAD EXAMIANS APP
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