CUET Preparation Today
The function of the soft iron core in the moving coil galvanometer is: |
To increase the degree of radial field and magnetic field strength To reduce the degree of radial field and magnetic field strength To increase magnetic field and to reduce the radial field To decrease both radial field and magnetic strength |
To increase the degree of radial field and magnetic field strength |
The correct answer is Option (1) → To increase the degree of radial field and magnetic field strength Increase Magnetic field - The soft iron core attracts magnetic line of force, which increases the strength of magnetic field. Increase magnetic radial field - The soft iron makes the electromechanical field radial, which increases the magnetic field. |
