Home
Class 12
PHYSICS
The resistance of an ammeter is 13 Omega...

The resistance of an ammeter is `13 Omega` and its scale is graduated for a current upto `100 A`. After an additional shunt has been connected to this ammeter it becomes possible to measure currents upto `750 A` by this meter. The value of shunt resistance is

A

` 2 K Omega`

B

` 20 Omega`

C

` 2 Omega`

D

` 0.2 Omega`

Text Solution

Verified by Experts

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

Topper's Solved these Questions

  • Electrical Instrument

    MOTION|Exercise EXERCISE -2|21 Videos

  • ELASTICITY AND THERMAL EXPANSION

    MOTION|Exercise Exercise - 4 (Level-II)|11 Videos

  • ELECTRO MAGNETIC INDUCTION

    MOTION|Exercise EXERCISE-4| Section B (Prevous Years Problems )|29 Videos

Similar Questions

Explore conceptually related problems

An ammeter of resistance 0.80 Omega can measure current upto 1.0 A. What must be the value of shunt resistance to enable the ammeter to measure current upto 5.0 A ? What is the combined resistance of the ammeter and the shunt?

An ammeter of resistance 0.6Omega can measure current upto 1.0 A. Calculate (i) The shunt resistance required to enable the ammeter to measure current upto 5.0 A (ii) The combined resistance of the ammeter and the shunt.

Knowledge Check

  • The resistance of an ammeter is 13Omega and its scale is graduated for a current upto 100 A. After an additional shunt has been connected to this ammeter, it becomes posible to measure currents upto 750 A by this meter. The value of shunt resistance is

    A
    `20Omega`
    B
    `2Omega`
    C
    `0.2Omega`
    D
    `2kOmega`

  • An ammeter of resistance 1.5 Omega can measure currents upto 1 A. The value of shunt resistance to measure current upto 4 A is

    A
    `0.5 Omega`
    B
    `1 Omega`
    C
    `1.5 Omega`
    D
    `0.2 Omega `

  • The resistance of a galvanometer is 100Omega . A shunt of 5 Omega is connected to it to convert it into an ammeter. The internal resistance of the ammeter is

    A
    `5.2Omega`
    B
    `4.8Omega`
    C
    `4.6Omega`
    D
    `4.2Omega`

    • Similar Questions

    Explore conceptually related problems

    An ammeter of resistance 0*80Omega can measure current upto 1*0A . (a) What must be the value of shunt resistance to enable the ammeter to measure current upto 5*0A ? (b) What is the combined resistance of the ammeter and the shunt?

    A galvanometer with its coil resistance 25 Omega requires a current of 1 mA for its full deflection. In order to construct an ammeter to read up to a current of 2A, the approximate value of the shunt resistance should be :

    A galvanometer of resistance 15 omega gives full scale deflection for a current of 2 mA calculate the shunt resistance needed to convert it to an ammeter of range 0 to 5A

    An ammeter of resistance R gives a full scale deflection when a current of 30 A is passed through it. We eant to convert it into an ammeter to measure the current only upto 10A. The value of the shunt required for this is

    A galvanometer having a resistance of 75 Omega gives the full scale deflection for the current of 25mA. The shunt required to convert it into an ammeter to measure the current up to 59 A is

    Home
    Profile