Question
Two circular loops are placed with their centres separated by a fixed distance. How would you orient the loops to have:
  1. The largest mutual inductance.
  2. The smallest mutual inductance?

Answer

  1. When the loops have their axis at 0' the mutual inductance is maximum.
  2. When loops have their axis at 90' then their inductance is minimum.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

Using figure find the relative luminosity of wavelength:
  1. 480nm
  2. 520nm
  3. 580nm
  4. 600nm
Why should electrostatic field be zero inside a conductor?
Equal currents are flowing through two infinitely long parallel wires. What will be the magnetic field at a point midway when the currents are flowing in the same direction?
A circular loop of radius 4.0cm is placed in a horizontal plane and carries an electric current of 5.0A in the clockwise direction as seen from above. Find the magnetic field:
  1. At a point 3.0cm above the centre of the loop.
  2. At a point 3.0cm below the centre of the loop.
In a semiconductor the concentration of electrons is $8 \times 10^{13} \ cm^{–3}$ and that of holes is $5 \times 10^{12} \ cm^{–3}.$ Is it a $p-$type or $n-$type semiconductor?
A capacitor has been charged by a dc source. What are the magnitudes of conduction and displacement currents, when it is fully charged?
The radioactive isotope D decays according to the sequence $\text{D}\xrightarrow{\beta}^{- }$ $\text{D}_{1}\xrightarrow{\alpha - particle}$ $\text{D}_{2}$If the mass number and atomic number of $\text{D}_{1}$ are 176 and 71 respectively, what is (i) the mass number (ii) atomic number of D?
Light from a point source falls on a small area placed perpendicular to the incident light. If the area is rotated about the incident light by an angle of 60°, by what fraction will the illuminance change?
A gas is kept in an enclosure. The pressure of the gas is reduced by pumping out some gas. Will the temperature of the gas decrease by Charles's law?
In the case of forward bias, the P end of a $P - N$ junction diode is connected to which terminal of the battery?