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The magnetic field outside a solenoid is nearly zero due to the cancellation of magnetic fields generated by individual current-carrying loops within the solenoid. These loops produce magnetic fields that point in opposite directions, resulting in a net magnetic field of zero outside the solenoid. Additionally, the magnetic field lines tend to stay within the solenoid due to the high permeability of the material surrounding the coils, further reducing the magnetic field outside the solenoid to negligible levels.
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Why B outstide a solenoid is non-zero?
The magnetic field outside a solenoid is non-zero because magnetic field lines emanate from the ends of the solenoid, creating a magnetic field in the surrounding space. This external magnetic field is due to leakage of the magnetic field from the solenoid as well as fringing effects at the edges of the solenoid.
What will be the force acting on the electron due to magnetic field of the solenoid when an electron is moving with a velocity V along the axis of a long straight solenoid carrying a current I?
When an electron moves along the axis of a long straight solenoid carrying a current I, the magnetic field inside the solenoid is uniform and directed along the axis. According to the Lorentz force law, the force acting on a charged particle moving in a magnetic field is given by ( F = q(\mathbf{V} \times \mathbf{B}) ), where ( \mathbf{V} ) is the velocity of the electron and ( \mathbf{B} ) is the magnetic field. Since the velocity of the electron is parallel to the magnetic field in the solenoid, the cross product ( \mathbf{V} \times \mathbf{B} ) equals zero. Thus, the force acting on the electron due to the magnetic field of the solenoid is zero.
What is a property of a magnetic field?
One property of a magnetic field is that its divergence is zero. That means that a magnetic field line is always a loop and that the net magnetic field coming out of or going in to an enclosed surface is always zero. The result of this is that there are no magnetic monopoles, at least none discovered. Theories, however, do abound.
Is magnetic field a conservative field?
Yes, the magnetic field is a non-conservative field. This means that the work done by a magnetic field on a charged particle moving in a closed path is generally not zero, unlike a conservative field where work done in a closed path is zero.
What is the phase difference between electric and magnetic field?
In an electromagnetic wave, the phase difference between the electric and magnetic fields is 90 degrees. This means that when the electric field is at its maximum value, the magnetic field is zero, and vice versa. This relationship is essential for understanding how electromagnetic waves propagate through space.
Why B outstide a solenoid is non-zero?
The magnetic field outside a solenoid is non-zero because magnetic field lines emanate from the ends of the solenoid, creating a magnetic field in the surrounding space. This external magnetic field is due to leakage of the magnetic field from the solenoid as well as fringing effects at the edges of the solenoid.
What will be the force acting on the electron due to magnetic field of the solenoid when an electron is moving with a velocity V along the axis of a long straight solenoid carrying a current I?
When an electron moves along the axis of a long straight solenoid carrying a current I, the magnetic field inside the solenoid is uniform and directed along the axis. According to the Lorentz force law, the force acting on a charged particle moving in a magnetic field is given by ( F = q(\mathbf{V} \times \mathbf{B}) ), where ( \mathbf{V} ) is the velocity of the electron and ( \mathbf{B} ) is the magnetic field. Since the velocity of the electron is parallel to the magnetic field in the solenoid, the cross product ( \mathbf{V} \times \mathbf{B} ) equals zero. Thus, the force acting on the electron due to the magnetic field of the solenoid is zero.
Where the vertical component of earth's magnetic field is zero?
The vertical component of Earth's magnetic field is zero at the magnetic equator, where the magnetic field lines are horizontal. At the magnetic equator, the magnetic field lines run parallel to the Earth's surface, resulting in a zero vertical component.
What is a property of a magnetic field?
One property of a magnetic field is that its divergence is zero. That means that a magnetic field line is always a loop and that the net magnetic field coming out of or going in to an enclosed surface is always zero. The result of this is that there are no magnetic monopoles, at least none discovered. Theories, however, do abound.
What is the neutral point of the magnet?
In a combined magnetic field, a neutral point is a place where the magnetic field is zero
What is the neutral point of the magnetic field?
The neutral point of a magnetic field is the point in space where the magnetic field intensity is zero. At this point, the magnetic forces acting on a particle will cancel each other out, resulting in no net force. This occurs in regions where magnetic field lines from opposite directions meet and cancel each other.
Is magnetic field a conservative field?
Yes, the magnetic field is a non-conservative field. This means that the work done by a magnetic field on a charged particle moving in a closed path is generally not zero, unlike a conservative field where work done in a closed path is zero.
What will be the Larmor precession frequency of an electron in an atom placed in zero magnetic field?
There is no Larmor precession without magnetic field
Which happens to the magnetic field of a wire when you change the direction of the current in the wire The magnetic field?
The magnetic field collapses to zero, then builds up again for the current in the opposite direction.
Why emf is not zero when field current is zero?
Even when the field current is zero, there can still be a residual magnetic field present in the system, which can induce an electromotive force (emf) in a nearby conductor. This phenomenon is explained by Faraday's law of electromagnetic induction, where a changing magnetic field can induce a voltage in a closed loop.
When magnetic flux through surface is zero?
When the magnetic flux through a closed surface is zero, it means that the magnetic field lines entering the surface equal the field lines leaving it. This can occur when the surface encloses no magnetic sources or when it lies parallel to the magnetic field lines. Mathematically, it can be expressed as ∮B⋅dA = 0, where B is the magnetic field and dA is the differential area vector.
What if a magnetic needle is kept in a non uniform magnetic field?
A magnetic needle kept in uniform magnetic field will experience zero net force but non-zero net torque........Since the magnetic lines are uniform,the force acting on each end of the needlewill be equal and opposite.So it will cancel each other resulting zero net force.
