PYQs Based Test - 02 : Electrical Circuits and Machines

An air cored coil having a winding resistance of 10 Ω is connected in series with a variable capacitor Cx. The series circuit is excited by a 10 V sinusoidal voltage source of angular frequency 1000 rad/s. As the value of the capacitor is varied, a maximum voltage of 30 V was observed across it. Neglecting skin-effect, the value of the inductance of the coil in millihenry is ________

A household fan consumes 60 W and draws a current of 0.3125 A (rms) when connected to a 230 V (rms) ac, 50 Hz single phase mains. The reactive power drawn by the fan in VAr is ____________ (rounded off to the nearest integer).

For the circuit shown below the input resistance $R_{11}={\frac{V_1}{I_1}|}_{I_2=0}$ is

Consider the transformer to be ideal the transmission parameter ‘A’ of the 2 port network shown in the figure below is –

For the circuit, shown in the figure, the total real power delivered by the source to the loads is ____ (in kW)