Indian army has published the notification for SSC Tech 56 men and SSC Tech 27 women for the course commencing at OTA Chennai from April 2021
An iron rod B is moved vertically on another iron rod A . Rod B is always attracted by rod A in all positions then
Rod B is magnetized, and rod A is non-magnetized
Rod A and rod B both are non-magnetized
Rod A and rod B both are magnetized
None of these
On what application does speedometer works?
Lenz’s law
Eddy current
Electromagnetic induction
Mutual inductance
How do define the magnetic susceptibility of a magnetic substance?
It is the capability of a magnetic substance to magnetize the substance
It is denied as the total number of magnetic lines of induction crossing per unit area
It is the ratio of the magnetic permeability μ of the substance to the permeability of free space μ0
It is denied as the ratio of the intensity of magnetization to the magnetic intensity
What should be the internal resistance of an ideal ammeter?
Zero
infinite
Vary from circuit to circuit
Can have any value
A proton is accelerated using a cyclotron. The strength of the magnetic field is 0.4 T. Find the frequency of revolution.
750 KHz
525 KHz
4 MHz
6 1 MHz
