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The reading of the ammeter (below, left) in the circuit (Assume voltmeter and ammeter are ideal) is
[image]
An ideal voltmeter draws no current, so the $$10\,\Omega$$ and $$40\,\Omega$$ resistors are in series across the $$100\text{ V}$$ supply with the ammeter. The current is $$\frac{100}{10 + 40} = 2\text{ A}$$.
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