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

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.