A battery of electromotive force (e.m.f.) 6.0 V and negligible internal resistance is connected in series with a resistor of resistance 6.0 Ω and a variable resistor of resistance from zero to 4.0 Ω. A voltmeter is connected across the variable resistor. The resistance of the variable resistor is changed.
What is the range of the voltmeter reading?
0 V – 2.4 V
2 )
0 V – 3.6 V
3 )
2.4 V – 6.0 V
4 )
3.6 V – 6.0 V
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