Recent questions tagged impedance

1 answer 27 views

Impedance ratio

asked Jun 11 by Shimroz123
2 answers 46 views

How to find total impedance Z, current I and Impedance angle ?

asked May 30 by Shimroz123
1 answer 123 views

A 50Ω transmission line is terminated in an impedance of 20-j50. What will be the reflection coefficient? A) 0.69 B) 1.69 C) 6.9 D) 16.9 

asked Jun 18, 2018 in Electrical Engineering by Shimroz123
1 answer 75 views

 An independent voltage source in series with an impedance ZS=R+jXS delivers a maximum average power to a load impedance ZL when A) ZL = R B) ZL = jXS C) ZL = R-jXS D) ZL = R+jXS 

asked Jun 18, 2018 in Electrical Engineering by Shimroz123
1 answer 40 views

The rotor impedance of a slip ring induction motor is (0.1 + j0.6)Ohm/ ph . The resistance/ph to be inserted into rotor to get maximum torque at starting should be

asked May 3, 2018 in Electrical machine design by Shimroz123
1 answer 95 views

A transmission line has 1 P.0 impedance on a base of 11 KV, 100 MVA. On a base of 55 KV. it will have a P.0 impedance of

asked May 3, 2018 in Electric Power Transmission by Shimroz123
1 answer 22 views

The surge impedance for over head line is taken as  (1) 10-20 ohms (2) 50-60 ohms (3) 100-200 ohms (4) 1000-2000 ohms

asked May 1, 2018 in Switchgear And Protection by Shimroz123
1 answer 21 views

Which of the following is true for a bus impedance matrix ?  (A) It is sparse  (B) It has diagonally dominant elements  (C) It is the inverse of the bus admittance matrix  (D) Each element of it is the reciprocal of the corresponding element in admittance matrix

asked Apr 29, 2018 in Electric Power Transmission by Shimroz123
1 answer 50 views

An A.C. voltage is impressed across a pure resistance of 3.5 ohms in parallel with a pure inductance of impedance of 3.5 ohms?

asked Mar 25, 2018 in Electrical Engineering by Shimroz123
1 answer 16 views

In a series resonant circuit, the impedance of the circuit is?

asked Mar 24, 2018 in Electrical Engineering by Shimroz123
1 answer 28 views

Is the input impedance of MOSFET more than BJT and FET?

asked Mar 19, 2018 in MOSFET by Shimroz123
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