A dry cell of emf 1.6V and internal resistance 0.10 ohm is connected to a resistor of resistance R ohm. If the current drawn from the cell is 2A.

A dry cell of emf 1.6V and internal resistance of 0.10 Omega is connected to a resistor of resistance R omega . If the current drawn the cell is 2A , then (i) What is the voltage drop across R ? (ii) What is the rate of energy dissipation in the resistor ?

5When a cell of emf E and internal resistance r, is connected to the ends of a resistance R, then current through resistance is I. If the same cell is connected to the ends of a resistance R/2 then the current would be-

In a circuit a cell with internal resistance r is connected to an external resistance R. The condition for the maximum current that drawn from the cell is

A cell of emf 1.1 V and internal resistance 0.5 Omega is connected to a wire of resistance 0.5 Omega . Another cell of the same emf is connected in series bur the current in the wire remain the same .Find the internal resistance of second cell

Four cell each of emf 2 V and internal resistance 1 ohm are connected n parallel with an external resistance of 6 ohm. The current in the external resistance is

A cell of e.m.f. 2V and internal resistance 0.5Omega is connected across a resistor R. The current that flows is same as that, when a cell of e.m.f. 1.5V and internal resistance 0.3Omega is connected across the same resistor. Then

Twenty four cells each of emf 1.5 V and internal resistance 0.5 ohms are to be connected to a 3 ohm resistance. For maximum current through this resistance the nuber of rows and number of columns that you connect these cells is.