English

Write Current Sensitivity of a Galvanomete S.I. Unit.

Advertisements
Advertisements

Question

Write current sensitivity of a galvanomete S.I. unit. 

Advertisements

Solution

current sensitivity of a galvanomete SI unit is radians/Ampere .

shaalaa.com
  Is there an error in this question or solution?
2012-2013 (March) All India Set 1

Video TutorialsVIEW ALL [2]

RELATED QUESTIONS

A galvanometer of resistance G is converted into a voltmeter to measure upto V volts by connecting a resistance R1 in series with the coil. If a resistance R2 is connected in series with it, then it can measures upto V/2 volts. Find the resistance, in terms of R1 and R2, required to be connected to convert it into a voltmeter that can read upto 2 V. Also find the resistance G of the galvanometer in terms of R1 and R2


Draw a labelled diagram of a moving coil galvanometer. Describe briefly its principle and working.


Figure shows two circuits each having a galvanometer and a battery of 3V.

When the galvanometers in each arrangement do not show any deflection, obtain the ratio R1/R2.


Explain the significance of a radial magnetic field when a current-carrying coil is kept in it. 


In a moving coil galvanometer the deflection (Φ) on the scale by a pointer attached to the spring is ______.


A moving coil galvanometer can be converted into an ammeter by ______.


A galvanometer of resistance 100 Ω gives a full-scale deflection for a current of 10−5 A. To convert it into an ammeter capable of measuring up to 1 A we should connect a resistance of ______.


The coil of galvanometer consists of 100 turns and effective area of 1 square cm. The restoring couple is 10-8 N-m/rad. The magnetic field between the pole pieces is 5T. The current sensitivity of this galvanometer will be ______.


A galvanometer coil bas 500 turns and each tum has an average area of 3 × 10-4 m2. If a torque of 1.5 Nm is required to keep this coil parallel to a magnetic field when a current of 0.5 A is flowing through it, the strength of the field (in T) is ______.


A voltmeter has a range of 0 - 20 V and a resistance of 500 Q. Explain how can be used to measure voltages from 0 - 200 volt?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×