Questions in Current Electricity

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	To get the maximum current from a parallel combination of n identical cells each of internal resistance r in an external resistance R, when
	Two identical cells send the same current in $2\,\Omega $ resistance, whether connected in series or in parallel. The internal resistance of the cell should be
	The internal resistances of two cells shown are $0.1\,\Omega $ and $0.3\,\Omega $. If $R = 0.2\,\Omega $, the potential difference across the cell
	A torch battery consisting of two cells of 1.45 volts and an internal resistance $0.15\,\Omega $, each cell sending currents through the filament of the lamps having resistance 1.5ohms. The value of current will be
	The electromotive force of a primary cell is 2 volts. When it is short-circuited it gives a current of 4 amperes. Its internal resistance in ohms is
	The figure shows a network of currents. The magnitude of currents is shown here. The current i will be
	A battery of e.m.f.E and internal resistance r is connected to a variable resistor R as shown here. Which one of the following is true
	A dry cell has an e.m.f. of 1.5 V and an internal resistance of $0.05\,\Omega $. The maximum current obtainable from this cell for a very short time interval is
	Consider the circuit given here with the following parameters. E.M.F. of the cell = 12 V. Internal resistance of the cell $ = 2\,\Omega $. Resistance $R = 4\,\Omega $ Which one of the following statements in true
	A current of two amperes is flowing through a cell of e.m.f. 5 volts and internal resistance 0.5 ohm from negative to positive electrode. If the potential of negative electrode is 10V, the potential of positive electrode will be

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