Q. If operator 'a' = 1 ∠120° then (1 + a) =

View solution

Q. A current wave is i = 100e^(-60t) The initial and final values of current are

View solution

Q. Assertion (A): The impedance of a series resonant circuit is minimum at resonance.

Reason (R): Resonance condition implies unity power factor condition.

View solution

Q. The internal impedance of a source is 3 + j 4 Ω. It is desired to supply maximum power to a resistive load. The load resistance should be

View solution

Q. The internal impedance of a source is 3 + j 7 Ω. For maximum power transfer, load impedance should be

View solution

Q. A wave trap is a

View solution

Q. In an ac series RLC circuit the maximum phase difference between any two voltages can be

View solution

Q. In a series circuit with XL constant and R variable the current locus lies in the third quadrant.

View solution

Q. One coulomb charge is equal to the charge on

View solution

Q. Two capacitors of 16 μF each are connected in series. Another capacitor of 16 μF is connected in parallel with this combination. The total capacitance will be

View solution

Q. Assertion (A): Operator has a value 1 ∠ - 90° or 1 ∠ 90°.

Reason (R): Operator 'a' has a value 1 ∠ 120°.

View solution

Q. The maximum current and voltage ratings for a 0.5 W, 10 kW resistor are

View solution

Q. The network has 10 nodes and 17 branches. The number of different node power voltages would be

View solution

Q. Two capacitor of 1 F each are connected in parallel. Another 1 F capacitor is connected in series with the parallel combination. The total capacitance is

View solution

Q. The realization of the term Ks yields

View solution

Q. If operator 'a' = 1 ∠120° then (1 - a²) =

View solution

Q. If A = 3 + j1 and B = 4 + j3, A + B =

View solution

Q. When a constant voltage source and constant current source are in series, the current source is ineffective.

View solution

Q. A system has transfer function 10/(s+1)(s+2). The dc gain is

View solution

Q. In a series RLC circuit, the current at resonance is I₀ the total energy stored in the circuit at resonance is

View solution