- What is the position of the loop when the current is maximum?
- How can we induce current in a coil?
- How does the current flow in a coil when South Pole goes away from it?
- What is the direction of the induced magnetic field?
- What type of current is induced in the coil by doing the experiment related to this figure?
- When a current carrying coil is placed in a magnetic field?
- What is the torque on the coil?
- Does a current carrying coil produce uniform magnetic field?
- How do you calculate the magnetic field strength of a coil?
- At what condition the torque produced on a rectangular coil by magnetic field intensity is maximum?
- How do you get maximum torque?
- Can you have negative torque?
- What is the net force on the square coil?
- What happens when rectangular current carrying coil is placed in magnetic field?
- How does the magnetic field of a coil depend on the current in the coil?
- What is the formula to find the force on a rectangular current carrying coil?
- What kind of magnetic field is produced inside a coil?
- What happens if there is no change in the direction of current in the coil of wire which is kept in uniform magnetic field?
- Where is the strongest magnetic field in a coil?
- Why is there no magnetic field outside the solenoid?

## What is the position of the loop when the current is maximum?

What is the position of the loop when the current is maximum.

The maximum current is when the loop is halfway into the region of the field.

The maximum current is when the loop is at the beginning of the region of the field.

The maximum current is when the loop is at the end of the region of the field..

## How can we induce current in a coil?

Ans: The different ways to induce current in a coil are as follows: (i) Moving a magnet towards a coil sets up a current in the coil circuit, (ii) If a coil is moved rapidly between the two poles of a horse-shoe magnet, then an electric current is induced in the coil.

## How does the current flow in a coil when South Pole goes away from it?

One end of the coil is a north pole and the other end is a south pole. When the north pole of our magnet is moving towards the left hand end of the coil, the induced current flows anticlockwise (as we look at the left hand end). … So the induced current opposes the motion that induced it (from Lenz’s Law).

## What is the direction of the induced magnetic field?

The induced magnetic field is in a direction that tends to cancel out the change in the magnetic field in the loop of wire. So, you can use the Right Hand Rule to find the direction of the induced current by remembering that the induced magnetic field is opposite in direction to the change in the magnetic field.

## What type of current is induced in the coil by doing the experiment related to this figure?

Direct currentDirect current is induced in the coil by doing the experiment related to this given figure. Explanation: When a DC current passes through a long straight conductor a magnetising force and a static magnetic field is developed around it.

## When a current carrying coil is placed in a magnetic field?

If the current flows in that coil, it is equivalent to a bar magnet kept at the centre perpendicularly(I.e., perpendicular to the diameter of the coil). So, in the same way, when a cuurent carrying coil is kept in a magnetic field, three orientations are possible.

## What is the torque on the coil?

where N is the number of turns on the coil. If the perpendicular to the coil is at an angle θ to the field direction, then the torque exerted on the coil is Fd where d = a sin q. where A = ab, the area of one face of the coil. The minimum value of the torque is zero, when θ = 0.

## Does a current carrying coil produce uniform magnetic field?

No, magnetic field produced due to a current carrying cirular coil is not uniform. However, it may be considered as uniform at the centre of the coil.

## How do you calculate the magnetic field strength of a coil?

Magneto Motive Force is expressed as a current, I flowing through a coil of N turns. The magnetic field strength of an electromagnet is therefore determined by the ampere turns of the coil with the more turns of wire in the coil the greater will be the strength of the magnetic field.

## At what condition the torque produced on a rectangular coil by magnetic field intensity is maximum?

(b) The maximum torque occurs when θ is a right angle and sin θ = 1. (c) Zero (minimum) torque occurs when θ is zero and sin θ = 0. (d) The torque reverses once the loop rotates past θ = 0.

## How do you get maximum torque?

Note that the torque is maximum when the angle is 90 degrees. A practical way to calculate the magnitude of the torque is to first determine the lever arm and then multiply it times the applied force. The lever arm is the perpendicular distance from the axis of rotation to the line of action of the force.

## Can you have negative torque?

Technically, torque is also a vector – but that might be a little too much at this point. … Oh, torque can be positive or negative. Let us say that a positive torque would make a stationary object rotate counter clockwise and a negative torque would make it rotate clockwise.

## What is the net force on the square coil?

Solution : Force on side BC and AD are equal but opposite so their net will be zero. 25×10-7N , towards the wire.

## What happens when rectangular current carrying coil is placed in magnetic field?

As the current carrying conductor experiences a force when placed in a magnetic field, each side of a current carrying rectangular coil experiences a force in a magnetic field. … the direction of force is perpendicular to the plane containing PQ and B. It is directed outward direction as shown in figure.

## How does the magnetic field of a coil depend on the current in the coil?

A wire coil that is carrying a current produces a magnetic field B( r), where r is the distance from the center of the coil to the field point. The strength of the field B is proportional to the current I in the coil. The strength and direction of the field depend on r. … For large distances both fields fall off as 1/r3.

## What is the formula to find the force on a rectangular current carrying coil?

The force on a current-carrying wire in a magnetic field is F = IlB sin θ.

## What kind of magnetic field is produced inside a coil?

An electromagnet is a type of magnet in which the magnetic field is produced by an electric current. Electromagnets usually consist of wire wound into a coil. A current through the wire creates a magnetic field which is concentrated in the hole, denoting the centre of the coil.

## What happens if there is no change in the direction of current in the coil of wire which is kept in uniform magnetic field?

If there is no change in the direction of the current in the coil of wire, it shows the property of the magnetic force acting on the moving charged particles. The free electrons move towards the positive end of the conductor with some velocity. As a result of this, magnetic force acts on them.

## Where is the strongest magnetic field in a coil?

Bar Magnet As can be visualized with the magnetic field lines, the magnetic field is strongest inside the magnetic material. The strongest external magnetic fields are near the poles. A magnetic north pole will attract the south pole of another magnet, and repel a north pole.

## Why is there no magnetic field outside the solenoid?

The magnetic field lines follow the longitudinal path of the solenoid inside, so they must go in the opposite direction outside of the solenoid so that the lines can form a loop. … In order for the total number of field lines to be conserved, the field outside must go to zero as the solenoid gets longer.