The diagram below shows a simple electrical circuit.

Question

Which of the following would always increase the flow of current through the lights in the circuit shown above?

a
Increasing the battery voltage and increasing the resistance of the lights.
b
Decreasing the battery voltage and decreasing the resistance of the lights.
c
Increasing the battery voltage and decreasing the resistance of the lights.
d
Decreasing the battery voltage and increasing the resistance of the lights.

Answer 1

c - Increasing the battery voltage and decreasing the resistance of the lights would always increase the flow of current through the circuit, as per Ohm's law (I = V/R).