If a load resistance `r` then power supplied by the cell to load `R` is maximum if ….. And maximum power is given by …..

Determine the load resistance for which the power delivered to the circuit is a maximum. Graph the dependence of the power on the load resistance.

(a) A cell of emf E and internal resistance r is connected to a resistance R . (i) Relate r and R , so that power in R is maximum. (ii) Maximum power consumed by R . (iii) Efficiency. (b) Find value r in terms of R so that power in external circuit is maximum. (c) A battery of internal resistance 4Omega is connected to the network of resistance as shown in the figure. what must be the value of R so that maximum power is delivered to the network? what is tha maximum power?

Statement I: When an external resistor of resistance R (connected across a cell to internal resistance r ) is varied, power consumed by resistance R is maximum when R = r. Statement II: Power consumed by a resistor of constant resistance R is maximum when current through it is maximum.

Statement I: When an external resistor of resistance R (connected across a cell to internal resistance r ) is varied, power consumed by resistance R is maximum when R = r. Statement II: Power consumed by a resistor of constant resistance R is maximum when current through it is maximum.

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

A battery of emf 10 V is connected with a load resistance of 50 Omega the total power delivered by the battery is 2 W. If load resistance is replaced by R then power delivered is 4 W, the value of R is

A battery of emf 10 V is connected with a load resistance of 50 Omega the total power delivered by the battery is 2 W. If load resistance is replaced by R then power delivered is 4 W, the value of R is

A cell of emf epsilon and internal resistance r is connected across a load resistance R (i) Find the maximum power delivered at the load ? (ii) Draw the power (P ) vs load resistance ( R ) graph.

In the given electric circuit find (a) current (b) power output (c) relation between r and R so that the electric power output (that means power to R) is maximum. (d) value of maximum power output (e) plot graph between power and resistance of load (f) from graph we see that for a given power output there exixts two values of external resistance, prove that the product of these resistances equal to r^2 . (g) what is the efficiency of the cell when it is used to supply maximum power.