[sp_wpcarousel id='20421']

What is Galvanometer & its use in Physics

Galvanometer & its use




A galvanometer is a sensitive and delicate device used to measure the magnitude and direction of small currents


Principle of Galvanometer:


The principle of Galvanometer is based on the interaction of the magnetic field produced by a current forcing in a conductor and the magnetic field of permanent magnet. In this instrument, electrical energy is converted into mechanical energy.




A rectangular coil of wire is wound on a light frame with a pointer attached on the tap. The coil frame is pivoted between the jaws of a large horseshoe magnet, at both ends of the coil, hairsprings are attached. These springs help in keeping the coil at zero i potential and also provide the path for entry and exit to the current. A soft iron cylinder is fixed in the core of the coil to enhance the force of conductor. The concave shape of the poles of the horseshoe magnet combined with the cylindrical shape of the core creates the radial field to en5ure that the field lines are always perpendicular to the coil.

See also  10th Class Biology Guess Papers Topics for Long Questions




When current passes through the coil a couple of opposite forces are produced and causes the coil to rotate. By the motion of the coil, pointer moves on the scale and galvanometer is used to determine the magnitude and direction of current.


Is it worth buying an e-book – the advantages and disadvantages of readers An e-book or reader is undoubtedly a handy tool, but many conservative people still prefer traditional books. Let’s figure out why the electronic version is better or worse than its prototype, as well as what is the difference between readers and other tablet devices. A reader resembles a tablet to many people. At first glance, the similarities may be confusing, but upon closer acquaintance, users realize that an e-reader is a completely different device. The main difference is the display – modern readers use the so-called E-ink technology

Spread Knowledge

Want to Request for a Book or Novel

If you want to request for a book or a novel which you have not found in our website. Then just fill the form, our editorial team will try to upload the book as soon as possible.

Click Here to Leave a Comment Below 0 comments

Leave a Reply: