Home
Class 12
PHYSICS
A galvanometer having 30 divisions has a...

A galvanometer having 30 divisions has a current sensitivity of `20 mu A //` division. It has a resistance of 5` Omega ` How will you convert it into an ammeter measuring upto 1A ?

Text Solution

Verified by Experts

The correct Answer is:
`S=(15xx10^(3))/(1-0.6xx10^(3))=0.0015Omega" in parallel R"=0.985 Omega" series"`.
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • CURRENT ELECTRICITY

    RESONANCE ENGLISH|Exercise Exrcies-3(PART-2)|23 Videos
  • COMMUNICATION SYSTEMS

    RESONANCE ENGLISH|Exercise Exercise 3|13 Videos
  • DAILY PRACTICE PROBLEM

    RESONANCE ENGLISH|Exercise DPP.No.71|1 Videos

Similar Questions

Explore conceptually related problems

A galvanometer having 30 divisions has a current sensitivity of 20muA//di vision . It has a resistance of 25Omega . How will you convert it into an ammeter upto 1 ampere? How will you convert this ammeter into a voltmeter up to 1 volt?

A galvanometer having 30 divisions has current sensitivity of 20 mu A//"division" . Find the maximum current it can measure.

A galvanometer having 30 divisions has current sensitivity of 20 mu A//"division" . Find the maximum current it can measure.

A galvanometer with a coil of resistance 100 Omega and a scale having 100 divisions has a current sensitivity of 25 muA//"division." How will you convert it into an ammeter of range 0 to 5 A?

A galvanometer has 30 divisions and a sensitivity 16 mu A //"div" . It can be converted into a voltmeter to read 3 V by connecting

A galvanometer having resistance of 50 Omega requires a current of 100 Omega A to given full scale deflection. How much resistance is required to convert it into an ammeter of range of 10 A ?

A galvanometer with a scale divided into 100 equal divisions has a current sensitivity of 10 divisions per mA and a voltage sensitivity of 2 divisions per mV. What adoptions are required to read (i) 5A for full scale and (ii) 1 division per volt?

The full scale deflection current of a galvanometer of resistance 1Omega is 5 mA . How will you convert it into a voltmeter of range of 5V ?

A moving coil galvanometer has a coil of resistance 59 Omega . It shows a full scale deflection for a current of 50 mA. How will you convert it to an ammeter having a range of 0 to 3 A?

The sensitivity of a galvanometer is 60 divisions/Amp. When a shunt is used, its sensitivity becomes 10 divisions/amp. If galvanometer is of resistance 20Omega , · the value of shunt used is :