A bar magnet is dropped through a horizontal aluminium ring (having a small cut) along the axis of the ring as shown below. The acceleration (a) of the bar magnet will be (where g is acceleration due to gravity)
A long cylindrical conductor of radius R carries a current such that current den
NextThe susceptibility of a paramagnetic material is χ at 27°C. At what temperature
Which of the following is not the unit of length :
Medium-- The speed of light in a medium is 1.5 × 10⁸ m/s. The critical angle for this medium with respect
MediumThe frequency of an electromagnetic wave in free space is 2 MHz. When it passes through a medium of
Easy-- In a p-type semiconductor, the majority charge carriers are
Easy-- The energy of an electron in nth orbit of hydrogen atom is E_n = -13.6/n² eV. The energy required
Medium-- Two magnets of magnetic moments M and 2M are placed in a vibration magnetometer, with like poles
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