Home
Class 12
PHYSICS
A moving coil galvanometer A has 200 tur...

A moving coil galvanometer `A` has 200 turns and resistance `100 Omega`. Another meter `B` has 100 turns and resistance `40 Omega`. All the other quantities are same in both the cases. The current sensitivity of

A

B is double as that of A

B

A is 2 times of B

C

A is 5 times of B

D

B is 5 times of A.

Text Solution

Verified by Experts

The correct Answer is:
B
`theta/I = (NAB)/(C )`
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • MOVING CHARGES AND MAGNETISM

    NARAYNA|Exercise EXERCISE - 2(C.W) (CONVERSION OF MCG INTO AMMETER AND VOLTMETER)|8 Videos

  • MOVING CHARGES AND MAGNETISM

    NARAYNA|Exercise EXERCISE - 2(H.W) (AMPERE.S CIRCUITAL LAW BIO-SAVART LAW AND ITS APPLICATIONS)|9 Videos

  • MOVING CHARGES AND MAGNETISM

    NARAYNA|Exercise EXERCISE - 2(C.W) (TORQUE ON CURRENT LOOP)|2 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

Two moving-coil galvanometer, P and Q, are alike in all respects except that P's coil has 10 turns of resistance 2Omega and Q's coil has 100 turns of resistance 30 Omega . Compare their (i) current sensitivities (ii) Voltage sensitivities.

A galvanometer has resistance 100 Omega and it requires current 100 muA for full scale deflection. A resistor 0.1 Omega is connected to make it an ammeter. The smallest current required in the circuit to produce the full scale deflection is

Knowledge Check

  • A moving coil galvanometer A has 100 turns and resistance 10Omega . Another goal galvanometer B has 50 turns and 5 Omega . The other quantities are same in both the cases. Then the voltange sensitivity of

    A
    A is greater than that of B
    B
    B is greater than that of A
    C
    A and B in Same
    D
    Cannot be compared

  • A moving coil galvanometer of resistance 100Omega is used as an ammeter using a resistance 0.1 Omega . The maximum diflection current in the galvanometer is 100 muA . Find the minimum current in the circuit so that the ammeter shows maximum deflection

    A
    100.1 mA
    B
    1000.1 mA
    C
    10.01 mA
    D
    1.01 mA

  • A moving coil galvanometer has a resistance of 990Omega. in order to send only 10% of the main currect through this galvanometer, the resistance of the required shunt is

    A
    `0.9 Omega`
    B
    `110 Omega`
    C
    `405 Omega`
    D
    `90 Omega`

    • Similar Questions

    Explore conceptually related problems

    A galvanometer of resistance 100Omega has voltage sensitivity 2 div/volt.t he current sensitvity of galvanometer is

    A moving coil galvanometer of resistance 5 Omega has voltage sensitivity 2 div per mV. Its current sensitivity in div per mA is

    A voltmeter of resistance 200 Omega is used to measure p.d across resistances 100 Omega and 200 Omega . .

    A moving coil galvanometer has 100 turns and a resistance of 10ohm. The coil is 5 cm long and 4 cm wide. A potential difference of 100mV produces a full scale deflection ( the coil is turned through 60^@ ). The flux density in the gap is 1000G . The required torque of the controlling spring is

    The deflection in a moving coil galvanometer is reduced to half, when it is shunted with a resistance 40 Omega . The resistance of the galvanometer is

    Home
    Profile