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What will happen to a compass needle when an aluminium bar is kept in between them?
The compass needle will be unaffected by the presence of the aluminium bar as it is not magnetic. Aluminium is not a magnetic material, so it will not interfere with the function of the compass needle.
Why are magnets kept in the keepers?
when magnets are kept loose their magnetic power becomes weak. therefore a non magnetic substance should be kept in between of two magnets while storing them. so that there is no continuous attraction or repulsion between them.
What gives earth its magnetic force field?
in 1872 3 scientists dug to the earths core and implanted an electro magnet more powerful than an atomic bomb. The government kept all this secret so that no one could disrupt the magnet's current.
When magnet is dipped or kept in water does it lose its power of attraction?
No, a magnet does not lose its power of attraction when it is dipped in water. The magnetic field of the magnet remains intact in water and it can still attract objects.
How are magnets destroyed?
Ferromagnetism can be impaired by creating an opposing magnetic field. A wire coil placed around a magnet creates an electromagnetic field. If this is aligned in the opposite direction, it could eventually remove the intrinisic field of the permanent magnet.In many cases, simply heating a magnet would likewise remove the magnetic field.Use a degaussing coil (driven by AC, not DC). Gradually reduce the field strength either by reducing the AC current or slowly separating the coil and the object.
Why is the compass needle kept in a closed glass vessel Answers for class 6?
The compass needle is kept in a closed glass vessel to prevent any interference from external magnetic fields, which could disrupt its accurate alignment with the Earth's magnetic field. Keeping the needle enclosed helps maintain its sensitivity and stability, ensuring that it always points towards the magnetic north.
What will happen to a compass needle when an aluminium bar is kept in between them?
The compass needle will be unaffected by the presence of the aluminium bar as it is not magnetic. Aluminium is not a magnetic material, so it will not interfere with the function of the compass needle.
Why deflection magnetometer kept in tanA position?
A deflection magnetometer is kept in the tanA position to align the magnetic field produced by the Earth with the plane of the magnetometer's needle. This helps ensure accurate measurements of the horizontal component of the Earth's magnetic field by minimizing external disturbances. The tanA position helps in reducing errors in the measurement caused by stray magnetic fields or misalignment.
Why does the current carrying conductor experiences a force when it is placed in magnetic field state Fleming's left hand rule?
The force on current carrying conductor kept in a magnetic field is given by the expression F = B I L sin@ So the force becomes zero when the current carrying conductor is kept parallel to the magnetic field direction and becomes maximum when the current direction is normal to the magnetic field direction. Ok now why does a force exist on the current carrying conductor? As current flows through a conductor magnetic lines are formed aroung the conductor. This magnetic field gets interaction with the external field and so a force comes into the scene.
Which are defected by electric and magnetic fields?
Any charged particle in motion especially not parallel to the magnetic field, current carrying conductor kept inclined or perpendicular to the magnetic field would get deflected. As far as electric field is concerned, even stationary charges would be displaced.
Dead beat in magnetic compass used in aircraft?
Trying to keep oscillations of the compass at a minimum, the mass of the magnetic assembly is kept as close as possible to the suspension needle. There are also compasses with damping wires.
Why are magnets kept in the keepers?
when magnets are kept loose their magnetic power becomes weak. therefore a non magnetic substance should be kept in between of two magnets while storing them. so that there is no continuous attraction or repulsion between them.
Why and when does a current carrying conductor kept in a magnetic field experiences a force list factor on which the direction of this force depend State the rule which may be used to determine the di?
Current carrying conductor will have magnetic lines around it. So when it is kept perpendicular to the magnetic field then the force would be maximum. The force depends on 1. magnitude of current 2. Magnetic field induction 3. Angle between the direction of current and magnetic field. Fleming's Left hand rule is used to find the direction of force acting on the rod
Does a current carrying conductor experience a force when kept parallel to the magnetic field?
Yes. The force attracts the conductor to the magnetic field, F= eVB = e(-V.B + VxB) = e[-V.B, ] =- eV.B when V and B are parallel!
Why does current carrying conductor experience force when kept near a magnet?
The current carrying conductor has a magnetic field of of its own so when it comes in contact with with another magnetic field it experiences a force which is given by fleming's left hand rule.The force depends upon :direction and the strength of the magnetic fielddirection and the strenth of the current
Which principle is used in a DC motor?
Current carrying conductor kept in a magnetic field gets deflected. This is the basic principle. In short Lorentz force causes the rotation
What parts of a hypodermic setup must be kept sterile?
needle
