The ultimate individual unit of magnetism in any magnet is called
The ultimate individual unit of magnetism in any magnet is called Options (a) North pole (b) South pole (c) Dipole…
7 years ago
Magnetic Effects of Current and Magnetism
An iron rod of volume 10⁻⁴ m³ and relative permeability 1000 is placed inside a long
An iron rod of volume 10⁻⁴ m³ and relative permeability 1000 is placed inside a long solenoid having 5 turns/cm.…
7 years ago
Two thin long conductors seprated by a distance d carry currents
Two thin long conductors seprated by a distance d carry currents I₁ and I₂ in the same direction. They exert…
7 years ago
If a steel wire of length l and magnetic moment M is bent into a semicircular arc,
If a steel wire of length l and magnetic moment M is bent into a semicircular arc, then the new…
7 years ago
If a magnet is suspended at an angle 30⁰ to the magnetic meridian, the dip needle
If a magnet is suspended at an angle 30⁰ to the magnetic meridian, the dip needle makes angle of 45⁰…
7 years ago
Two 220V – 100W bulbs are connected first in series and then in parallel.
Two 220V - 100W bulbs are connected first in series and then in parallel. Each time the combination is connected…
7 years ago
Electromagnets are made of soft iron because soft iron has
Electromagnets are made of soft iron because soft iron has Options (a) Low magnetic susceptibility and low retentivity (b) High…
7 years ago
An electron in a circular orbit of radius 0.05 nm performs 10¹⁶ rev/s. The magnetic
An electron in a circular orbit of radius 0.05 nm performs 10¹⁶ rev/s. The magnetic moment due to this rotation…
7 years ago
when a magnetic field is applied on a stationary electron, then it
when a magnetic field is applied on a stationary electron, then it Options (a) remains stationary (b) spins about its…
7 years ago
The horizontal component of earth’s magnetic field at a place is 3×10⁻⁴ T
The horizontal component of earth's magnetic field at a place is 3x10⁻⁴ T and the dip is tan⁻¹ (4/3). A…
7 years ago