How does a Helmholtz coil work?

A Helmholtz coil is a device for producing a region of nearly uniform magnetic field. It consists of two identical circular magnetic coils that are placed symmetrically, one on each side of the experimental area along a common axis, and separated by a distance (h) equal to the radius (R) of the coil.

How do you make Helmholtz coils?

To setup a Helmholtz coil two similar coils with radius R are placed in the same distance R. When the coils are so connected that the current through the coils flows in the same direction, the Helmholtz coils produce a region with a nearly uniform magnetic field.

What is Helmholtz coil arrangement?

Helmholtz coils is an arrangement of a pair of identical coils (same no. of turns, radius) placed. coaxially and separated by a distance equal to the radius of either coil. Such a pair produces an almost. uniform magnetic field between the coils if the current through them is same and in the same sense such.

How you will set the direction of Helmholtz coil?

A compass is placed in the center of the Helmholtz Coils. When the current in the coils is zero, the needle of the compass points to the north. Because the horizontal component of the earth’s magnetic field Bearth→is in the North-South direction.

How many turns in a Helmholtz coil?

Product Specifications

What is Helmholtz galvanometer?

A helmholtz galvanometer , like other galvanometers , is an instrument which can be use to measure dc current in the circuit. It is an improved form of the tangent galvanometer . It consists of two equal coils placed coaxially at a distance equal to the radius of the either coil .

What are the applications of Helmholtz coil?

It consists of two electromagnets on the same axis. Besides creating magnetic fields, Helmholtz coils are also used in scientific apparatus to cancel external magnetic fields, such as the Earth’s magnetic field.