There will be the same current at all points of the circuit, since there are no junctions.
The e.m.f. is split between the components by kirchhoff's second law, so: e.m.f. = V1 + V2 + V3
The voltage splits proportionally to the resistance, as V = IR
V = IR so if I is constant: IR total = IR1 + IR2 + IR3
Cancelling the I's gives: R total = R1 + R2 + R3
Comments
No comments have yet been made