Two cells `E_(1) " and " E_(2)` of emfs 4 V and 8 V having internal resistances `0.5 Omega " and " 1.0 Omega` respectively are connected in opposition to each other. This combination is connected in series with resistances of `4.5 Omega " and " 3.0 Omega`. Another resistance is connected in parallel across the `3 Omega` resistor.
(a) Draw the circuit diagram
(b) Calculate the total current flowing through the circuit.

Two cells, E_(1) and E_(2) of emfs 4 V and 8 V having internal resistances 0.5 Omega and 1.0 Omega respectively are connected in opposition to each other. This combination is connected in opposition to with resistance of 4.5 Omega and 3.0 Omega . Another resistance of 6 Omega is connected in parallel across the 3 Omega resistor. (a) Draw the circuit diagram (b) Calculate the total current flowing through the circuit. (c ) Terminal potential difference acrss cell E_(1) and E_(2) .

Two batteries of emfs 2 V and 1 V of internal resistances 1Omega and 2Omega respectively are connected in parallel. The effective emf of the combination is

In the ciruit the cells E_1 and E_2 have emfs of 4V and 8V and internal resistance 0.5 Omega and 1.0 Omega, respectively. Calculate the current through 6 Omega resistance. ltBrgt

In the circuit diagram given in Fig. 4.31, the cells E_(1) " and " E_(2) have emf's 4 V and 8 V and internal resistances 0.5 Omega " and " 10 Omega respectively. Calculate the current in each resistance .

A battery of emf 3V and internal resistance r is connected in series with a resistor of 55 Omega through an ammeter of resistance 1 Omega . The ammeter reads 50 mA. Draw the circuit diagram and calculate the value of r.

Two cells of e.m.f. 2.5 V and 2.0 V having internal resistance of 1Omega and 2Omega respectively are connected in parallel with similar poles connected together so as to send the current in the same direction through an external resistance of 2Omega . The current in the external resistance is