Home
Class 12
PHYSICS
A cell of emf E has an internal resistan...

A cell of emf `E` has an internal resistance `r` and is connected to rheostat. When resistance `R` of rheostat is changed, correct graph of potentail difference across it is

A

B

C

D

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • CURRENT ELECTRICITY

    MOTION|Exercise EXERCISE - 1 (SECTION E- Electrical Power & Energy)|10 Videos

  • CURRENT ELECTRICITY

    MOTION|Exercise EXERCISE - 1 (SECTION F- Electrical Instrument + Exp. Verifying ohm s law & Specific Resistance Using Meter Brige & Post Office + Potentiomenter (EMF & Int . Res.)|11 Videos

  • CURRENT ELECTRICITY

    MOTION|Exercise EXERCISE -1(SECTION B- Resistance & resistivity , Ohms law +VI (Volt - curr.) Characteristics + Colour Code + Temp . Dependence|8 Videos

  • CONSTRAINED MOTION

    MOTION|Exercise EXAMPLES|12 Videos

  • ELASTICITY

    MOTION|Exercise EXERCISE -3|60 Videos

Similar Questions

Explore conceptually related problems

A cell having an emf E and internal resistance r is connected across a variable external resistance R. As the resistance R is increased, the plot of potential difference V across R is given by

Cell having an emf epsilon internal resistance r is connected a variable external resistance R As the resistance R is increased the piot of potential difference V across R is given by

2A cell having an emf epsilon and internal resistance r is connected across a variable external resistance R . As the resistance R is increased, the plot of potential difference V across R is given by

A cell of emf E and internal resistance r is connected in series with an external resistance nr. Than what will be the ratio of the terminal potential difference to emf, if n=9.

A cell of e.mf. E and internal resistance r is connected in series with an external resistance nr. Then, the ratio of the terminal potential difference to E.M.F.is

Tow cells with the same emf E and different internal resistances r_(1) and r_(2) are connected in series to an external resistances R . The value of R so that the potential difference across the first cell be zero is