A circular disc of radius 0.2 m is placed in a uniform magnetic field of induction in such a way that its axis makes an angle of with .
The magnetic flux linked to the disc will be:
1. 0.02 Wb
2. 0.06 Wb
3. 0.08 Wb
4. 0.01 Wb
If a current is passed through a circular loop of radius R then magnetic flux through a coplanar square loop of side l as shown in the figure (l<<R) is:
1.
2.
3.
4.
The radius of a loop as shown in the figure is \(10~\mathrm {cm}.\) If the magnetic field is uniform and has a value \(10^{-2}~ T,\) then the flux through the loop will be:
1. | \(2 \pi \times 10^{-2}Wb\) | 2. | \(3 \pi \times 10^{-4}Wb\) |
3. | \(5 \pi \times 10^{-5}Wb\) | 4. | \(5 \pi \times 10^{-4}Wb\) |
What is the dimensional formula of magnetic flux?
1.
2.
3.
4.