Networks Analysis and Synthesis - Engineering

Q1:

In figure which is correct at any time t

A I = iR + iL

B I = iR + iL iC

C I = iR + iL - iC

D I = iR - iL - iC

ANS:B - I = iR + iL iC

As per KCL sum of currents entering a node is equal to sum of currents leaving the node.