Question

a circuit has 3 5volts sources connected across each resistor and the value of resisitors are 15ohm, 25ohm connected in series and 5ohm connected in parallel across the previous resistors, determine the value of 'I' in the circuit?

Answer 1

Current through R1,

Current through R2,

Current through R3,

Total current across the circuit is the sum of of all currents flowing through the individual resistors.

Equivalent resistance across the parallel combination is,