Questions in Current Electricity

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	Emf is most closely related to
	For driving a current of 2 A for 6 minutes in a circuit, 1000 J of work is to be done. The e.m.f. of the source in the circuit is
	Two batteries of e.m.f. 4V and 8 V with internal resistances $1 \Omega$ and $2 \Omega$ are connected in a circuit with a resistance of $9 \Omega$ as shown in figure. The current and potential difference between the points P and Q are
	In the shown circuit, what is the potential difference across A and B
	Four identical cells each having an electromotive force (e.m.f.) of 12V, are connected in parallel. The resultant electromotive force (e.m.f.)of the combination is
	Electromotive force is the force, which is able to maintain a constant
	A cell of emf 6 V and resistance 0.5 ohm is short circuited. The current in the cell is
	A storage cell is charged by 5 amp D.C. for 18 hours. Its strength after charging will be
	A battery having e.m.f.$5\,\,V$ and internal resistance $0.5 \Omega$ is connected with a resistance of $4.5 \Omega$ then the voltage at the terminals of battery is
	In the given circuit the current $I_1$ is