Question
A circular loop carrying a current is replaced by ann equivalent magnetic dipole. A point on the axis of the loop is in:
✓
Answer
- End-on position.
Points lying on the axis of a magnet are called end-on points. In our case, the point on the axis of the loop (on replacing the circular loop with an equivalent magnetic dipole) lies on the axis of the magnetic dipole or on the end-on position.
If P was the point on the axis of the loop, then it is clear from the figure that P lies on the end-on position of the equivalent magnetic dipole.
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
When an ammeter is shunted its measuring range :
A parallel plate air capacitor has a capacitance of 100 μμF. The plates are at a distance d apart. If a slab of thickness t( t ≤ d) and dielectric constant 5 is introduced between the parallel plates, then the capacitance will be(a) 50 μμF(b) 100 μμF(c) 200 μμF(d) 500 μμF
In a coaxial, straight cable, the central conductor and the outer conductor carry equal currents in opposite directions. The magnetic field is zero:
- Outside the cable.
- Inside the inner conductor.
- Inside the outer conductor.
- In between the tow conductors.
Gauss's law is true only if force due to a charge varies as
An inductor, a resistance and a capacitor are joined in series with an $AC$ source. As the frequency of the source is slightly increased from a very low value, the reactance$:$
→A steady current flows in a metallic conductor of non-uniform cross-section. The quantity/ quantities constant along the length of the conductor is/are(a) Current, electric field and drift speed(b) Drift speed only(c) Current and drift speed(d) Current only
The electric field for a plane, electomagnetic wave travelling in the +y direction is shown in figure.If the electric field of the wave $\overline{\text{E}}$ is in the Z direction , then the $\overline{\text{B}}$ field is.
→The ionization energy of hydrogen atom is 13.6eV. Following Bohr’s theory, the energy corresponding to a transition between 3rd and 4th orbit is:
The narrowest hysterisis loop is for:
Three $\alpha -$ particles and one $\beta -$ particle decaying takes place in series from an isotope $88^{\mathrm{Ra}^{288}}$.Finally the isotope obtained will be
→