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When a voltmeter is connected across a cell, it gives a reading of 1.5 V. When a resistor of 9 Ω is connected across the voltmeter, it gives a reading of 1.35 V. Find the internal resistance of the cell?
The diagram above shows a simple circuit that connected to a resistor. When the switch is off, the voltmeter shows a reading of 3.0V. When the switch is on, the voltmeter shows a reading of 2.4V. What is the internal resistance of the cell?
An experiment was carried out to determine the e.m.f. and the internal resistance of a dry cell. The result was plotted on a graph as shown in the diagram above. Find the internal resistance of the cell.
An experiment was carried out to determine the e.m.f. and the internal resistance of a dry cell. The result was plotted on a graph as shown in the diagram above. What is the e.m.f of the cell?