(a) Define the following terms as applied to an electric network: (i) node, (ii)…
PHYSICS · Subjective · CBSE · Physics · Current Electricity · Current Electricity
Problem
(a) Define the following terms as applied to an electric network:
(i) node, (ii) branch, and (iii) loop.
(b) State the junction rule and the loop rule for electric circuits.
(c) Describe briefly how the principle of conservation of charge leads to the junction rule.
(d) A simple circuit consists of an ideal cell of emf 12V in series with an external resistor of 6Ω and an internal resistance of 1Ω. Identify all the nodes and loops that exist in this circuit after drawing a neat labelled sketch. Explain in two or three sentences why there is only one independent junction equation and one independent loop equation for this circuit.