Question

A circuit consists of a battery and two resistors connected in parallel. If the resistance in both resistors is doubled, and the current is constant, how does the voltage change?

a) Voltage is quartered
b) Voltage is halved
c) voltage remains the same
d) voltage is doubled

Answer 1

resistors in //l cirucits have same voltage so \(
{ \color{#cc00ff}{voltage} \ is\ \color{gold}{doubled} }
\)

Answer 2

Since this is a resistive circuit so follow the Ohms law, V=IR where V is the potential difference, R is resistance and I is the current.

If the resistance is doubled and the current kept constant than the voltage will also be doubled.

@TaylorisMe did you understand this? :)