Questions in Current Electricity

Select	Question
	The internal resistance of a cell of e.m.f. 12V is $5 \times {10^{ - 2}}\,\Omega $. It is connected across an unknown resistance. Voltage across the cell, when a current of 60 A is drawn from it, is
	The current in the given circuit is
	A current of 2.0 ampere passes through a cell of e.m.f. 1.5 volts having internal resistance of 0.15 ohm. The potential difference measured, in volts, across both the ends of the cell will be
	A battery has e.m.f. 4 V and internal resistance r. When this battery is connected to an external resistance of 2 ohms, a current of 1 amp. flows in the circuit. How much current will flow if the terminals of the battery are connected directly
	Two batteries A and B each of e.m.f. 2 V are connected in series to an external resistance R = 1 ohm. If the internal resistance of battery A is 1.9 ohms and that of B is 0.9 ohm, what is the potential difference between the terminals of battery A
	When a resistor of $11 \Omega$ is connected in series with an electric cell, the current flowing in it is 0.5 A. Instead, when a resistor of $5 \Omega$ is connected to the same electric cell in series, the current increases by 0.4 A. The internal resistance of the cell is
	The internal resistance of a cell is the resistance of
	How much work is required to carry a $6 \mu C$ charge from the negative terminal to the positive terminal of a 9 V battery
	Consider four circuits shown in the figure below. In which circuit power dissipated is greatest (Neglect the internal resistance of the power supply)
	The emf of a battery is 2 V and its internal resistance is $0.5 \Omega$. The maximum power which it can deliver to any external circuit will be

Previous 1 ... 32 33 34 35 36 ... 66 Next

View Selected Questions (0)

Back to Categories