Network Analysis (EC-305) - Important Questions

Draw the parallel resonant circuit and derive the expression for resonant frequency. Prove the condition for parallel resonance.

Discuss the dot convention used in magnetically coupled circuits with suitable example.

For the network shown in figure draw the oriented graph and formulate the cut-set matrix.

Explain the following with suitable example: i) Sub graph ii) Connected graph iii) Planar graph iv) Tree and Co-Tree.

Apply the superposition theorem to find the current through the load resistor / voltage Vab in the given circuit.

Find Norton's equivalent circuit across terminals AB and find the current through the load using Norton's theorem.

Determine the value of RL to be connected across AB for maximum power transfer. Also calculate the maximum power absorbed by RL.

For the circuit given below, find the current I and then verify the reciprocity theorem numerically.

The network reaches steady state with switch K closed. At t=0 switch K is opened / position changed. Find the transient current i(t) for t>0.

Using Laplace transform (S-domain circuit) find the transient current i(t) / capacitor voltage vc(t) for the switched circuit with initial energy storage, switch closed at t=0. Draw the S-domain circuit.

Find the inductor current i(t) for t>0 in the given RL circuit after switching following steady state. The switch is moved at t=0 after long steady state.

Write the time-domain expression for the given waveform synthesized with step, ramp, gate and sinusoidal functions and find its Laplace transform.

Obtain the Z-parameters and Y-parameters of the given two-port network. Check for reciprocity and symmetry.

Define Z and Y parameters of a two-port network and derive the relationship between them. Also obtain h-parameters in terms of Z-parameters.

Explain mesh analysis and nodal analysis with suitable example. Solve the given DC circuit with dependent source to find branch currents using mesh / nodal analysis.