Home
Class 12
PHYSICS
A student is recuired to measure emf of ...

A student is recuired to measure emf of a cell the should use .

A

Potentiometer

B

Voltmeter

C

ammeter

D

either (1) or (2)

Text Solution

Verified by Experts

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

Topper's Solved these Questions

  • EXPERIMENTAL PHYSICS

    RESONANCE|Exercise Exercise -1 PART|1 Videos
  • EXPERIMENTAL PHYSICS

    RESONANCE|Exercise PART II|13 Videos
  • EXPERIMENTAL PHYSICS

    RESONANCE|Exercise PART -II|10 Videos
  • ELECTROSTATICS

    RESONANCE|Exercise HLP|39 Videos
  • GEOMATRICAL OPTICS

    RESONANCE|Exercise Advance level Problems|35 Videos

Similar Questions

Explore conceptually related problems

Why do we prefer a potentiometer to measure emf of a cell rather than a voltmeter ?

A voltmeter resistance 500 Omega is used to measure the emf of a cell of internal resistance 4 Omega . The percentage error in the reading of the voltmeter will be

Knowledge Check

  • A potentiometer can measure emf of a cell because:

    A
    the sensitivity of potentiometer is large.
    B
    no current is drawn from the cell at balance.
    C
    no current is drawn from the cell at balance.
    D
    internal resistance of cell is neglected.
  • The e.m.f. of a cell is a

    A
    unit vector
    B
    zero vector
    C
    scalar quantity
    D
    vector quantity
  • Back emf of a cell is due to

    A
    Electrolytic polarization
    B
    Peltier effect
    C
    Magnetic effect of current
    D
    Internal resistance
  • Similar Questions

    Explore conceptually related problems

    Volymeter can not be used to measure emf to a cell potentiometer can be used to measure emf of a cell because

    The length of a potentiometer wire is 200 cm and the e.m.f. of the battery connected to it is E. It is used to measure the e.m.f. of a cell whose internal resistance is 0.5 Omega . If the balance point is obtained at l=40 cm from the positive end, then the e.m.f. of the cell is

    A student is asked to measure 12 mL of a liquid as precisely as possible. Which piece of equipment should she select for this task ?

    The EMF of a cell is

    A voltmeter resistance 500 Omega is used to measure the emf of a cell of internal resistance 4 Omega . The percentage error in the reading of the voltmeter will be