Under what condition, the current passing through the resistance R can be increased by short - circuiting the battery of emf `E_2` The internal resistances of the two batteries are `r_1 and r_2,` respectively.

Find the current flowing current flowing thorugh the resistance R in the circuit shown in Fig. The internal resistances of the batteries are negilble.

In the given circuit the cells have zero internal resistance. The currents (in Amperes) passing through resistance R_(1) and R_(2) respectively, are :

In the given circuit the cells have zero internal resistance. The currents (in Amperes) passing through resistance R_(1) and R_(2) respectively, are :

What maximum power can be obtained from a battery of emf epsilon and internal resistance r connected with an external resistance R ?

Establish the following relation for current flowing through a circuit containing an external ressitanace R, a battery of e.m.f E and internal resistance r. I = E/(R+r)

Find the emf ( V ) and internal resistance (R) of a single battery which is equivalent toa parallel combination of two batteries of emf V_1 and V_2 and internal resistances r_1 and r_2 respectively, with polrities as shown in figure

Find the emf ( V ) and internal resistance (R) of a single battery which is equivalent toa parallel combination of two batteries of emf V_1 and V_2 and internal resistances r_1 and r_2 respectively, with polrities as shown in figure

Show that the rate of heat produced for ,any battery of emf E and internal resistance R will maximum for R = r