MCQ
Magnetic field intensity is defined as
- AMagnetic moment per unit volume
- ✓Magnetic induction force acting on a unit magnetic pole
- CNumber of lines of force crossing per unit area
- DNumber of lines of force crossing per unit volume
✓
Answer
Correct option: B.
Magnetic induction force acting on a unit magnetic pole
b
(b)Number of lines of force passing through per unit area normally is intensity of magnetic field, hence option $(c)$ is incorrect. The correct option is $(b).$
(b)Number of lines of force passing through per unit area normally is intensity of magnetic field, hence option $(c)$ is incorrect. The correct option is $(b).$
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Change Q on a capacitor varies with voltage V as shown in the figure, where Q is taken along the X-axis and V along the Y-axis. The area of triangle OAB represents
A step-down transformer is connected to 2400 volts line and 80 amperes of current is found to flow in output load. The ratio of the turns in primary and secondary coil is 20 : 1. If transformer efficiency is 100%, then the current flowing in primary coil will be
Two lighter nuclei combine to form a comparatively heavier nucleus by the relation given below:
→${ }_{1}^{2} X +{ }_{1}^{2} X ={ }_{2}^{4} Y$
The binding energies per nucleon ${ }_{1}^{2} X$ and ${ }_{2}^{4} Y$ are $1.1\,MeV$ and $7.6\,MeV$ respectively. The energy released in this process is $MeV$.
In electrolytic capacitors positive terminal is
For measurement of potential difference, potentiometer is preferred in comparison to voltmeter because
A circular coil of diameter $7\,cm$ has $24$ $turns$ of wire carrying current of $ 0.75\,A$. The magnetic moment of the coil is
→Assuming ideal diode the current through the $1 \Omega$ resistance in the circuit as shown in the figure is......$A$
→Dipole having dipole moment $4\,C-m$ is placed on origin along $x-$ axis. Point charge of $8\,\mu C$ is fixed at $(4, 0, 0)$ . Now dipole is rotated by an angle of $\frac{\pi }{2}$ . Find the work done (in $mJ$ ) in rotating the dipole.......$mJ$
→Two parallel wires in free space are $10\, cm$ apart and each carries a current of $10\, A$ in the same direction. The force one wire exerts on the other per metre of length is
→The unit of electric permittivity is