A cell `E_1` of emf 6V and internal resistance 2`Omega` is connected with another cell `E_2` of emf 4V and internal resistance 8`Omega` (as shown in the figure). The potential difference across points X and Y is :

The circuit in Fig. shows two cells connected in opposition to each other. Cell E_(1) is of emf 6V and internal resistance 2Omega, the cell E_(2) is of emf 4 V sand internal resistance 8omega . Find the potential difference between the points A and B .

In the circuit shown in fig. the cell has emf 10V and internal resistance 1 Omega

A voltmeter has a resistance of 50 Omega is connected across a cell of e.m.f. 2V and internal resistance 10 Omega . The reading of voltmeter is

A battery of emf 2V and internal resistance 0.5(Omega) is connected across a resistance in 1 second?

A 10 V cell of neglible internal resitsance is connected in parallel across a battery of emf 200 V and internal resistance 38 Omega as shown in the figure. Find the value of current in the circuit.

In the shown circuit the following battery is of emf 4V and internal resistance 8 Omega . Find the potential difference between points x and y as shown in the circuit.

Two batteries one of the emf 3V , internal resistance 1Omega and the other of emf 15 V , internal resistance 2Omega are connected in series with a resistance R as shown. If the potential difference between points a and b is zero, the resistance R in Omega is