What is Amperian loop?
It is an imaginary closed loop around a current carrying conductor through which ampere’s law is applied to that conductor.
What is the magnetic field due to a current through a circular loop?
Magnetic Field Pattern due to a Circular Loop Carrying Current. The magnetic field lines are concentric circles at every point of a current carrying circular loop. The direction of magnetic field of every section of the circular loop can be found by using the right hand thumb rule.
Is magnetic field zero inside Amperian loop?
and we find that the magnetic field is zero at the center of the cable (r = 0), and increases linearly up to the edge of the cable (r=R).
How do you make an Amperian loop?
Ampere’s Law
- Draw a closed loop of any shape.
- Walk around the loop once. For each step you take, multiply the length of your step by the component of the magnetic field that is parallel to your step.
- Add up all those products around the entire loop.
- That sum is proportional to the net current passing through the loop.
What is magnetic field formula?
F=ILBsinθ where θ is the angle between the wire and the magnetic field. The force is perpendicular to the field and the current. The equivalent formula for the force on a moving charged particle of charge q and velocity v is F, equals, q, v, B, sine, theta,F=qvBsinθ, with the force perpendicular to field and velocity.
Where is the magnetic field due to current through a circular loop uniform?
the centre of the current loop
Solution : Magnetic field due to current through circular loop is uniform at the centre of the current loop and non-uniform near the circular coil.
How does circular loop increase magnetic field?
Answer
- Radius of circular wire. Strength of magnetic field is inversely proportional to radius of circular wire.
- Number of turns in circular wire. If number of turns in circular wire are increased,Magnetic field at the centre of loop increases.
- The amount of current flowing through wire.
How do you draw an Amperian loop?
Draw a closed loop of any shape. Walk around the loop once. For each step you take, multiply the length of your step by the component of the magnetic field that is parallel to your step. Add up all those products around the entire loop.
Why the magnetic field inside and outside the toroid is zero?
Magnetic field inside a toroid is always tangential to the circular closed path. Magnetic field at any point inside the empty space surrounded by the toroid and outside the toroid is zero. Because not current enclosed by those space is zero.
What is the magnetic field inside the solenoid?
The magnetic field within the solenoid is uniform and parallel to the axis of the solenoid.
How can a current loop be used to determine the presence of a magnetic field in a given region of space?
A current loop is rotated in that region of space. If at any orientation, torque acts on it then magnetic field is present there. But if current carry loop does not experience any torque then magnetic field is not present.