Home
Class 12
PHYSICS
A maximum current point 0.5 mA can be pa...

A maximum current point 0.5 mA can be passed through a galvanometer of resistance 20 `Omega` . The resistance to be connected in series to convert it in to voltmeter of range 0-5V.is

Text Solution

Verified by Experts

R = G (n-1) , where `n = (V)/(V_g)`
` V = 5V, V_g = i_(g) G = 0.5 xx 10^(-3) xx 20 = 10^(-2) V`
` therefore n = 500 " and " R = 20 (500 -1) = 9980 Omega `
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • MOVING CHARGES AND MAGNETISM

    NARAYNA|Exercise C.U.Q (AMPERE.S CIRCUITAL LAW MAGNETIC FIELD DUE TO STRAIGHT CONDUCTOR )|28 Videos

  • MOVING CHARGES AND MAGNETISM

    NARAYNA|Exercise C.U.Q (TANGENT GALVANOMETER)|8 Videos

  • MOVING CHARGES AND MAGNETISM

    NARAYNA|Exercise Level -II (H.W)|37 Videos

  • MAGNETISM AND MATTER

    NARAYNA|Exercise EXERCISE - 4 (SINGLE ANSWER TYPE QUESTION)|17 Videos

  • NUCLEAR PHYSICS

    NARAYNA|Exercise LEVEL-II-(H.W)|9 Videos

Similar Questions

Explore conceptually related problems

The resistance of a moving coil galvanometer is 50 ohm and the maximum current which can be passed through the galvanometer is 0.002 A. What resistance (in ohm) must be connected to it order to convert in into an ammeter of range 0-0.5A?

When a current of 5 mA is passed through a galvanometer of resistance 30 Omega ,it shows a full -scale deflection. To convert it into a voltmeter, which can read voltage up to 7V, it is connected to a resistance R in series . What is the value of R ? Also calculate the resistance of the voltmeter.

Knowledge Check

  • A maximum current point 0.5mA can be passed through a galvanometer of resistance 20Omega . The resistance to be connected in series to convert it in the voltmeter of range 0-5V is

    A
    `980Omega`
    B
    `9980Omega`
    C
    `990Omega`
    D
    `9990Omega`

  • The range of voltmeter of resistance 300 Omega is 5 V. The resistance to be connected to convert it into an amineter of range 5 A is

    A
    1`Omega` in series
    B
    1`Omega`in parallel
    C
    0.1`Omega` in series
    D
    0.1`Omega` in parallel

  • The range of voltmeter of resistance 300 Omega is 5 V. The resistance to be connected to convert it into an ammeter of range 5 A is

    A
    ` 1 Omega "in series"`
    B
    `1 Omega "in parallel"`
    C
    `0.1 Omega "in series"`
    D
    `0.1 Omega "in parallel"`

    • Similar Questions

    Explore conceptually related problems

    The resistance of a galvanometer is 50 ohm and the maximum current which can be passed through it is 0.002 A. What resistance must be connected to it in order to convert it into an ammeter of range 0 – 0.5 A?

    A galvanometer has coil resistance 30 Omega and full deflection current of 2mA. What resistance is needed to convert it into a voltmeter of 0.2V range.

    In full scale deflection current in galvanometer of 100 ohm resistance is 1 mA. Resistance required in series to convert it into voltmeter of range 10 V.

    100 current gives a full scale deflection in a galvanometer of 2Omega resistance. The resistance connected with the galvanometer to convert it into a voltmeter to measure V 5 is

    The resistance of a galvanometer is 50 ohm and the maximum current which can be passed through it is 0.002 A. What resistance must be connected to it in order to convert it into an ammeter of range 0 – 0.5 A?

    Home
    Profile