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CBSE - XII Science - Physics - Moving Charges and Magnetism
In a right handed coordinate system XY plane is horizontal aaand Z axis is vertically upward . A uniform magnetic field exist in space in vertically upward direction with magnetic induction B . A particle with mass m and charge q is projected from the origin of the coordinate system at t=0 with a velocity vector given as v= v1i + v2k . Find the position coordinates of the particle after time t
Asked by kingromala
29th May 2020,
10:57 PM
CBSE - XII Science - Physics - Moving Charges and Magnetism
A current-carrying circular loop lies on a smooth horizontal plane. A) Can a uniform magnetic field be set up in such a manner that the loop turns around itself (i.e., turns about the vertical axis). (b) A current-carrying circular loop is located in a uniform external magnetic field. If the loop is free to turn, what is its orientation of stable equilibrium? Show that in this orientation, the flux of the total field (external field + field produced by the loop) is maximum. (c) A loop of irregular shape carrying current is located in an external magnetic field. If the wire is flexible, why does it change to a circular shape?
Asked by manishjs222
5th May 2020,
3:52 PM
CBSE - XII Science - Physics - Moving Charges and Magnetism
Sir , please explain the solved example,I did not understand it properly
Asked by modi72879
1st December 2017,
11:30 AM
CBSE - XII Science - Physics - Moving Charges and Magnetism
please solve the following question:
Asked by manasd
24th January 2017,
9:07 PM
CBSE - XII Science - Physics - Moving Charges and Magnetism
Q)Show that a planar loop carrying a current I, having N closely wound turns and area of cross section A, possesses a magnetic moment m=NIA.
Asked by Ibrahim Mohammed
14th February 2016,
5:35 PM
CBSE - XII Science - Physics - Moving Charges and Magnetism
Give reasons
a) A charged particle enters a uniform magnetic field in a direction perpendicular to the field always follow circular path ?
b) Why are the pole pieces of a magnet in a moving coil galvanometer made cylindrical?
Asked by vinitapahel123
12th December 2015,
4:49 PM
CBSE - XII Science - Physics - Moving Charges and Magnetism
Please explain:
Magnetic force Fm = qvB
Dimensions of magnetic force = [AT][L/T][AL/L^2] = [AT][L/T][A/L] = [A^2]
Asked by hilhew7
6th August 2015,
11:00 PM
CBSE - XII Science - Physics - Moving Charges and Magnetism
An electron is projected horizontally with kinectic energy 10 kev. A magnetic field of strength 1*10^7 T exists in the vertically upward direction. Calculate the sideways deflection of the electron in travelling through 1 metre.
Asked by rohit
21st July 2015,
2:13 AM
CBSE - XII Science - Physics - Moving Charges and Magnetism
Calculate the magnetic field produced at the center of hydrogen atom due to orbital motion of electron in clockwise direction.
Asked by j4jaigupta1998
13th June 2015,
7:37 AM
CBSE - XII Science - Physics - Moving Charges and Magnetism
Is it necessary to mention the distance between the coils? This is a question in a competitive exam, and I am asking it here to know whether there is a mistake in this question or not.
Asked by Aditya Great
4th June 2015,
5:24 PM
