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CBSE - XII Science - Physics - Moving Charges and Magnetism
state biot savart law
Asked by himanshurawat5823
8th March 2024,
1:24 PM
CBSE - XII Science - Physics - Moving Charges and Magnetism
why the flux of magnetic field over a closed surface always zero?
Asked by yashrajgharte24.12dgatl
24th August 2021,
7:23 AM
CBSE - XII Science - Physics - Moving Charges and Magnetism
derivation and expression for the magnetic induction at point dou to strith current carring condoctor
Asked by bhurkeshiva
16th April 2019,
11:06 PM
CBSE - XII Science - Physics - Moving Charges and Magnetism
An electron and a proton having equal momenta enter a uniform magnetic field at right angles to the field lines. What will be the ratio of the radii of curvature of their trajectories?
Asked by Nareshthakur4321nct
17th January 2019,
9:24 AM
CBSE - XII Science - Physics - Moving Charges and Magnetism
Two short magnets P and Q are placed one over the other with their magnetic axis mutually perpendicular to each other. it is found that the resultant field at a point on the prolongation of the magnetic field of P is inclined at 30 with this axis. compare the magnetic moments of the two magnets.
Asked by modi72879
25th November 2017,
11:35 AM
CBSE - XII Science - Physics - Moving Charges and Magnetism
What is Biot - Savart law. (in the form of a statement please)
Asked by pksunilnair
3rd October 2017,
3:08 PM
CBSE - XII Science - Physics - Moving Charges and Magnetism
pl derive the expression for the field due to straight wire using Biot Sawart's law
Asked by Rajeev
21st February 2016,
11:29 PM
CBSE - XII Science - Physics - Moving Charges and Magnetism
State Biot – Savart law. Deduce the expression for the magnetic field at a point on the axis of a current carrying circular loop of radius ‘R’ distant ‘x’ from the centre. Hence, write the magnetic field at the centre of a loop.
Asked by Topperlearning User
10th July 2015,
7:28 AM
CBSE - XII Science - Physics - Moving Charges and Magnetism
Draw a schematic diagram of a cyclotron. Explain its underlying principle and working, stating clearly the function of the electric and magnetic fields applied on a charged particle. Deduce an expression for the period of revolution and shown that it does not depend on the speed of the charged particle. Or (a) Using Biot-Savart's law, derive an expression for the magnetic field at the centre of a circular coil of radius R, number of turns N, carrying current i. (b) Two small identical circular coils marked 1,2 carry equal currents and are placed with their geometric axes perpendicular to each other as shown in the figure. Derive an expression for the resultant magnetic field at O.
Asked by Topperlearning User
21st May 2015,
1:08 PM
CBSE - XII Science - Physics - Moving Charges and Magnetism
State Biot-Savart law, giving the mathematical expression for it. Use this law to derive to derive the expression for the magnetic field due to a circular coil carrying current at a point along its axis. How does a circular loop carrying current behave as a magnet? OR With the help of a labeled diagram, state the underlying principle of a cyclotron. Explain clearly how it works to accelerate the charged particles. Show that cyclotron frequency is independent of energy of the particle. Is there an upper limit on the energy acquired by the particle? Give reason.
Asked by Topperlearning User
21st May 2015,
12:50 PM
CBSE - XII Science - Physics - Moving Charges and Magnetism
The electron in a hydrogen atom circles around the proton with a speed of 2.18 x 106 m/s in an orbit of radius 5.3 x 10 -11 m. calculate the equivalent current and magnetic field produced by proton.
Asked by Topperlearning User
18th May 2015,
4:14 PM
CBSE - XII Science - Physics - Moving Charges and Magnetism
The wire as has shown in the figure below carries current of 15 A. Determine the magnitude of magnetic field induction at the centre O. given the radius of the bent coil is 4 cm.
Asked by Topperlearning User
18th May 2015,
4:06 PM
CBSE - XII Science - Physics - Moving Charges and Magnetism
A circular coil of 400 turns has a radius 3.5 m and carries a current of 4 A. What is the magnetic field at a point on the axis of the coil from the centre?
Asked by Topperlearning User
18th May 2015,
4:00 PM
CBSE - XII Science - Physics - Moving Charges and Magnetism
A circular coil of wire of 100 turns, each of radius 8 cm carries a current of 0.50 A. What is the magnitude of the magnetic field induction at the centre of the coil?
Asked by Topperlearning User
18th May 2015,
3:57 PM
CBSE - XII Science - Physics - Moving Charges and Magnetism
A long straight conductor carrying current of 5A is placed in north south direction. Find the magnetic field due to 15 cm piece of the conductor at a point 3m-north east from the piece, if the current is flowing from south to north.
Asked by Topperlearning User
18th May 2015,
3:52 PM
CBSE - XII Science - Physics - Moving Charges and Magnetism
What is the magnetic moment of an electron orbiting in a circular orbit of radius r with speed v?
Asked by Topperlearning User
18th May 2015,
3:49 PM
CBSE - XII Science - Physics - Moving Charges and Magnetism
What is magnetic dipole moment of a current loop? Give its direction, if any.
Asked by Topperlearning User
18th May 2015,
3:45 PM
CBSE - XII Science - Physics - Moving Charges and Magnetism
Deduce the expression for the magnetic field induction at the centre of a circular electron orbit of radius r and angular velocity of orbiting electron ω.
Asked by Topperlearning User
18th May 2015,
3:43 PM
CBSE - XII Science - Physics - Moving Charges and Magnetism
What happens to the magnetic field of the coil on its axis at a point very very far away from its centre, if the radius of the coil is doubled keeping the current flowing through it unchanged?
Asked by Topperlearning User
18th May 2015,
3:37 PM
CBSE - XII Science - Physics - Moving Charges and Magnetism
Find the magnetic field produced if the point lies at the centre of circular coil carrying current?
Asked by Topperlearning User
18th May 2015,
3:36 PM
CBSE - XII Science - Physics - Moving Charges and Magnetism
Find the magnetic field induction at a point on the axis of a circular coil carrying current.
Asked by Topperlearning User
18th May 2015,
3:35 PM
CBSE - XII Science - Physics - Moving Charges and Magnetism
When will be the magnetic field produced at a point due to current element maximum and minimum?
Asked by Topperlearning User
18th May 2015,
2:31 PM
CBSE - XII Science - Physics - Moving Charges and Magnetism
Find the magnetic field produced by a long straight conductor of length L carrying current I of negligible area of cross section at a point on the conductor itself?
Asked by Topperlearning User
18th May 2015,
2:29 PM
CBSE - XII Science - Physics - Moving Charges and Magnetism
How will you find the direction of the magnetic field produced due to the current element of conductor?
Asked by Topperlearning User
18th May 2015,
2:28 PM
CBSE - XII Science - Physics - Moving Charges and Magnetism
State Biot Savart's law for the magnetic field produced at a point due to current element.
Asked by Topperlearning User
18th May 2015,
2:25 PM
CBSE - XII Science - Physics - Moving Charges and Magnetism
Q.Why does a current carrying loop act as a magnet?
Asked by Ravi consul
4th March 2015,
6:51 PM
CBSE - XII Science - Physics - Moving Charges and Magnetism
What is the reason that in biot savart's law the magnetic field is inversly proportional proprotional to square of distance between the conductor and the observation point?
Asked by rakshitreshu1997
10th February 2015,
12:30 AM
CBSE - XII Science - Physics - Moving Charges and Magnetism
The ratio of magnetic field at the centre of circular loop to the magnetic field at the centre of a square loop which are made by a constant length current carrying wire is____
Asked by Areeba Ahmad
1st November 2014,
11:23 PM
CBSE - XII Science - Physics - Moving Charges and Magnetism
The ratio of magnetic field at the centre of circular loop to the magnetic at the centre of a square loop which are made by a constant length current carrying wire is____
Asked by Areeba Ahmad
1st November 2014,
11:23 PM
CBSE - XII Science - Physics - Moving Charges and Magnetism
A straight wire of length 'l' is bent into a semicircular loop.Use Biot-Savart's law to deduce an expression for the magnetic field at its centre due to the current 'i' passing through it.
Asked by Mudita Agrawal
21st September 2014,
12:28 PM
