A cell of internal resistance r drivers current through an external resistance R. The power delivered by the to the external resistance will be maximum when:
Acell of internal resistance r drives a current through an external resistance R . The power delivered by the cell to the external resistance is maximum when
An total resistance R is connected to a cell of internal resistance r the maximum current flows in the external resistance, when
A battery is of emt E and internal resistance r . The value of external resistance R so that the power across eternal resistance is maximum :
A cell of emf epsilon and internal resistance r gives a current of 0.5 A with an external resistance of 12 Omega and a current of 0.25 A with an external resistance of 25 Omega . Calculate (a) internal resistance of the cell and (b) emf of the cell.
An accumulator of emf epsilon and internal resistance r is first connected to an external resistance R_(1) and then to an external resistance R_(2) for the same time. For what value of r the beats dissipated in R_(1) and R_(2) will be same?
An accumulator of emf epsilon and internal resistance r is first connected to an external resistance R_(1) and then to an external resistance R_(2) for the same time. For what value of r the beats dissipated in R_(1) and R_(2) will be same?
Five cells each of emf E and internal resistance r send the same amount of current through an external resistance R whether the cells are connected in parallel or in series. Then the ratio ((R)/(r)) is
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
If a cell is flowing current through external resistance then curve between terminal potential (V) and external resistance R is:
