Home
Class 11
PHYSICS
A battery of emf E and internal resistan...

A battery of emf E and internal resistance r is connected across a resistance R. Resistance R can be adjusted to any value greater than or equal to zero. A graph is plotted between the current passing through the resistance (I) and potential difference across the termainals of the battery (V). Maximum power developed across the resistance R is

A

5 W

B

10 W

C

15 W

D

25 W

Text Solution

Verified by Experts

The correct Answer is:
A
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • COMMUNICATION SYSTEM

    DC PANDEY|Exercise Only One Option is Correct|27 Videos

  • ELASTICITY

    DC PANDEY|Exercise Medical entrances s gallery|21 Videos

Similar Questions

Explore conceptually related problems

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

A cell of emf E and internal resistance r is connected across an external resistance R . Plot a graph showing the variation o P.D . Across R , verses R .

Knowledge Check

  • A battery of emf E and internal resistance r is connected across a resistance R. Resistance R can be adjusted to any value greater then or equla to zero. A graph is plotted between the current passing through the resistance (I) and potential (V) across it. Select the correct alternatives.

    A
    Internal resistance of the battery is `5 Omega`
    B
    Emf of the battery is 10V
    C
    Maximum current that can be taken from the battery is 2A.
    D
    V - I graph can never be a straight lines as shown in fig.

  • A cell of internal resistance r connected across an external resistance R can supply maximum current when

    A
    `R=r`
    B
    `R gt r`
    C
    `R=(r )/(2)`
    D
    `R =0`

  • A cell of e.m. E and internal resistance r is connected across a resistancer. The potential difference between the terminals of the cell must be

    A
    E
    B
    `E//2`
    C
    `E//4`
    D
    `3//2`

    • Similar Questions

    Explore conceptually related problems

    .A cell of emf E and internal resistance r is connected across a variable resistor. Plot a graph showing variation of terminal voltage V of cell versus the current.

    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.

    A battery of e.m.f. 10 V and internal resistance 0.5 ohm is connected across a variable resistance R . The value of R for which the power delivered in it is maximum is given by

    A cell of emf (E) and internal resistance r is connected across a variable external resistance . R. The graph of terminal potential difference V as a function of R is

    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 :

    Home
    Profile