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quick circuit question
quick question that came up in a past paper
now an ideal voltmeter has 0 resistance
kirchoff's first law is total current at a junction in a circuit must equal total current leaving the junction
now if voltmeter reads 8, current = 2
why is the voltage round the circuit, apparently it's 2, why? i know v = ir, v = 0, ir = 0, whats the current along the voltmeter hence current across cell?
apparently it's 2?
now an ideal voltmeter has 0 resistance
kirchoff's first law is total current at a junction in a circuit must equal total current leaving the junction
now if voltmeter reads 8, current = 2
why is the voltage round the circuit, apparently it's 2, why? i know v = ir, v = 0, ir = 0, whats the current along the voltmeter hence current across cell?
apparently it's 2?
i feel silly now lol
thanks
thanks
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