PHYSICS · Single correct · A Level · Physics · Electricity · Electricity
Problem
A 9V battery is connected to a 9Ω resistor. By mistake, a voltmeter of resistance 9kΩ is inserted in series with the resistor instead of being connected across it. Approximately what reading will the voltmeter show?
(a) Nearly 4.5V
(b) Nearly 8.1V
(c) Nearly 9V
(d) Nearly 0V