Home
Class 12
PHYSICS
In a moving coil galvanometer, what is m...

In a moving coil galvanometer, what is meant by a radial magnetic field ?

Text Solution

AI Generated Solution

### Step-by-Step Text Solution: 1. **Definition of Radial Magnetic Field**: In a moving coil galvanometer, a radial magnetic field refers to a magnetic field that radiates outward from a central point, similar to the spokes of a wheel. This means that the magnetic field lines are directed straight away from the center towards the edges of the coil. 2. **Direction of Magnetic Field**: In the context of a galvanometer, the radial magnetic field is created by the arrangement of the north and south poles of the magnet surrounding the coil. The magnetic field lines run perpendicular to the plane of the coil at all points, ensuring that the coil experiences a uniform magnetic field. ...
Promotional Banner

Similar Questions

Explore conceptually related problems

In a moving coil galvanometer, we use a radial magnetic field so that the galvanometer scale is

In a moving coil galvanometer is based on the

In a moving coil galvanometer a radial magnetic field is obtained with concave magnetic poles, to have

Describe the working principle of a moving coil galvanometer. Why is necessary to use (i) a radial magnetic field and (ii) a cylindrical soft iron core in a galvanometer ? Write the expression for current sensitivity of the galvanometer . Can a galvanometer as such be used for measuring the current ? Explain.

Answer the following: (a) With the help of a diagram , explain the principle and working of a moving coil galvanometer . (b) What is the importance of a radial magnetic field and how is it produced ? (c) Why is it while using a moving coil galvometer as a voltmeter a high resistance in series is required whereas in an ammeter a shunt is used ?

Statement -1 : The sensitvity of a moving coil galvanometer is increased by placing a suitable magnetic material as a core inside the coil. Statement - 2: Soft iron has a high magnetic permeability and cannot be easily magnetized or demagnetized.

Statement -1 : The sensitvity of a moving coil galvanometer is increased by placing a suitable magnetic material as a core inside the coil. Statement - 2: Soft iron has a high magnetic permeability and cannot be easily magnetized or demagnetized.

Assertion : Earth's magnetic field does not affect the working of a moving coil galvanometer. Reason: The earth's magnetic field is quite weak as compared to magnetic field produced in the moving coil galvanometer.

The deflection in a moving coil galvanometer is

Answer the following: a) Obtain the expression for the deflecting torque acting on the current carrying rectangular coil of a Galvanometer in a uniform magnetic field. Why is a radial magnetic field employed in the moving coil galvanometer? b) Particles of mass 1.6 xx 10^(-27) kg and charge 1.6 xx 10^(-19) C are accelerated in a cyclotron of dee radius 40 cm. It employs a magnetic field of 0.4 T . Find the kinetic energy (in MeV ) of the particle beam imparted by the accelerator.