Electric Circuits When AC flows through a pure capacitance then the current is in phase with emf. leads the emf by 90o. lags the emf by 90o. leads the emf by - 90o. is in phase with emf. leads the emf by 90o. lags the emf by 90o. leads the emf by - 90o. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The energy stored by a capacitor is given by 1/2 CV2. all of them. 1/2 QV. Q2 / 2C. 1/2 CV2. all of them. 1/2 QV. Q2 / 2C. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Image impedance can be written by using short circuit impedance(Zsc)and open circuit impedance(Zoc) as Zsc/Zoc Zsc+Zoc (Zsc . Zoc)½ Zsc-Zoc Zsc/Zoc Zsc+Zoc (Zsc . Zoc)½ Zsc-Zoc ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits If c1 = 8 μF, c2 = 4 μF, c3 = 7 μF c1, c2 are in series with c3 in parallel; effective capacitance will be 9.67 μF. 6 μF. 2.21 μF. 3 μF. 9.67 μF. 6 μF. 2.21 μF. 3 μF. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits In active filter which element is absent? Capacitor. Inductor. Resistor. Both of above. Capacitor. Inductor. Resistor. Both of above. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits In RLC parallel circuit if current through capacitor and inductor is equal. Then What is the power factor? leading unity zero lagging leading unity zero lagging ANSWER DOWNLOAD EXAMIANS APP
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