GATE 2020: Electric Circuits Rapid Revision Quiz 1

For a two port network Z matrix is given as

The value of h₁₁ is --------- (in ohms).

At an industrial sub-station with a 4 MW load, a capacitor of 2 MVAR is installed to maintain the load power factor at 0.97 lagging. If the capacitor goes out of service, the load power factor becomes

A resistive load is connected in series with a choke coil of internal resistance 5 Ω across a power supply of 400 V, 50 Hz. A current of 20 A is passing through load having a potential difference of 100 V across it. The value of inductance and power factor circuit are respectively.

The Z-parameters of a two-port network are:

When converted in terms of the T-parameters, the parameters were obtained as,

Determine the value of variables in Z-parameter matrix.

Two AC sources feed a common variable resistive load as shown in figure below
       
The maximum power that can be transferred to a variable load R_L is _______ W.