Question: When switch S in the figure is open, the voltmeter V of the battery reads 3.11V . When the switch is closed, the voltmeter reading

When switch S in the figure is open, the voltmeter V of the battery reads 3.11V . When the switch is closed, the voltmeter reading drops to 2.96V , and the ammeter A reads 1.65A . Assume that the two meters are ideal, so they do not affect the circuit.

Find the emf E

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