Equal number of identical cells are joined in series and again in parallel. Under what conditoin , will the currents in both the cases be the same ?

Equal number of identical cells are joined in series and again in parallel,Under what conditions,will the currents in both the cases be the same?

n identical cells, each of emf e and internal resistance r, are first connected in series and then in parallel. What will be the ratio of the emfs and of the internal resistances of these two cell combinations?

Resistances of two coils of wire are 3 Omega and 6 Omega . If these coils be connected is (i) series and in (ii) parallel combination, then what will be the equivalent resistance in each case ?

A conductor in series with an ammeter and a semiconductor in series with another ammeter are connected in parallel. At a certain voltage both the ammeters register the same current. Will this condition remains as such if the voltage of the dc source is increased? Explain your answer.

In a circuit with resistance R, current is supplied with n identical cells. At what value internal resistance of each cell will the current through R be the same whether they are connected in series or in parallel?

Net capacitance of three identical capacitors in series is 2 mu F . Find the ratio of the energy stored in the two configurations if they are both connected to the same source.

Two solenoids made of insulated conducting wires and of equal lengths are such that one is wound over another. Resistance of each of them is R and number of turns per unit lenghts is n. The solenoids are now conected in series and if current flows through them in the same direction in both cases, determine the magnetic field along the axis of solenoids in each case.

Two solenoids made of insulated conducting wires and of equal lengths are such that one is wound over another. Resistance of each of them is R and number of turns per unit lenghts is n. The solenoids are now connected in parallel and the combination is then connected with a battery of emf E. if current flows through them in the same direction in both cases, determine the magnetic field along the axis of solenoids in each case.