Two ideal batteries and a single resistor of resistance form a simple loop in the…
PHYSICS · Single correct · A Level · Physics · Electricity · Electricity
Problem
Two ideal batteries and a single resistor of resistance 10Ω form a simple loop in the order: Battery A, resistor, Battery B. Battery A supplies 9.0V and is oriented so that its positive terminal is on the left side of the resistor. Battery B supplies 6.0V and is oriented so that its positive terminal is on the right side of the resistor, opposing Battery A.
Which option gives the direction of conventional current through the resistor and the current’s magnitude?
(a) Left to right; 1.5A
(b) Right to left; 0.30A
(c) Left to right; 0.30A
(d) No current; the opposing batteries exactly cancel each other.