An H.R.C. fuse is?

1 Answer

Answer :

 An H.R.C. fuse is a ceramic body having metal and caps.

Related questions

Last Answer : H.R.C. fuse, as compared to a rewirable fuse, has no ageing effect, high speed of operation, high rupturing capacity.

Description : Ferromagnets

Last Answer : Ferromagnets Only certain materials, such as iron, cobalt, nickel, and gadolinium, exhibit strong magnetic effects. Such materials are called ferromagnetic, after the Latin word for iron, ... licensed under a Creative Commons Attribution 4.0 International License, except where otherwise noted.

Last Answer : Atrraction  capacity  will  increase  if  supply  current  is  increased.

Last Answer : Temporary magnets are used in loud-speakers,generators, motors.

Last Answer : Main causes of noisy solenoid are strong tendency of fan out of laminations at the end caused by repulsion among magnetic lines of force, uneven bearing surface, caused by dirt or uneven wear between moving and stationary parts.

Last Answer : Core of an electromagnet should have low coercivity, high susceptibility.

Last Answer : Magnetism of a magnet can be destroyed by heating, hammering, by inductive action of another magnet.

Last Answer : The magnetic materials exhibit the property of magnetisation because of spin of nucleus.

Last Answer : The bar magnet has the dipole moment.

Last Answer : The stray line of magnetic flux is defined as a line of magnetic flux which does not follow the designed path.

Last Answer : It assures a position which follows a line of magnetic flux

Last Answer : The initial permeability of an iron rod is the permeability almost in non-magnetised state.

Last Answer : The magnetic reluctance of a material decreases with increasing cross-sectional area of the material.

Last Answer : The magneto-motive force is the sum of all currents embraced by one line of magnetic field.

Last Answer : The uniform magnetic field is the field in which all lines of magnetic flux are parallel and equidistant.

Last Answer : Magnetic moment is a vector quantity.

Last Answer : A keeper is used to provide a closed path for flux.

Description : A rectangular magnet of magnetic moment M is cut into two piece of same length, the magnetic moment of each piece will be

Last Answer : A rectangular magnet of magnetic moment M is cut into two piece of same length, the magnetic moment of each piece will be M/2.

Last Answer : The retentivity (a property) of material is useful for the construction of permanent magnets.

Last Answer : A permanent magnet attracts some substances and repels others.

Description : If a copper disc is rotated rapidly below a freely suspended magnetic needle, the magnetic needle shall start rotating with a velocity

Last Answer : If a copper disc is rotated rapidly below a freely suspended magnetic needle, the magnetic needle shall start rotating with a velocity less than that of disc and in the same direction.

Last Answer : The commonly used material for shielding or screening magnetism is soft iron.

Last Answer : The most effective and quickest may of making a magnet from soft iron is by placing it inside a coil carrying current.

Last Answer : The Biot-savart’s law is a general modification of Ampere’s law.

Last Answer : Unit for quantity of electricity is coulomb.

Description : The unit of flux is the same as that of

Last Answer : The unit of flux is the same as that of pole strength.

Description : A 300 mm long conductor is carrying a current of 10 A and is situated at right angles to a magnetic field having a flux density of 0.8 T ; the force on the conductor will be

Last Answer : A 300 mm long conductor is carrying a current of 10 A and is situated at right angles to a magnetic field having a flux density of 0.8 T ; the force on the conductor will be 2.4 N.

Description : Two long parallel conductors carry 100 A. If the conductors are separated by 20 mm, the force per meter of length of each conductor will be

Last Answer : Two long parallel conductors carry 100 A. If the conductors are separated by 20 mm, the force per meter of length of each conductor will be 0.1 N.

Last Answer : Susceptibility is positive for ferromagnetic substances.

Last Answer : When two ends of a circular uniform wire are joined to the terminals of a battery, the field at the center of the circle will depend on the radius of the circle.

Last Answer : One maxwell is equal to 10 webers.

Last Answer : When a magnet is in motion relative to a coil the induced e.m.f. does not depend upon resistance of the coil.

Last Answer : One telsa is equal to 1 Wb/m2

Last Answer : The magnetism left in the iron after exciting field has been removed is known as residual magnetism.

Last Answer : The relative permeability is less than unity is case of diamagnetic materials.

Last Answer : Reciprocal of permeability is reluctivity.

Description : The working of a meter is based on the use of a permanent magnet. In order to protect the meter functioning from stray magnetic fields

Last Answer : The working of a meter is based on the use of a permanent magnet. In order to protect the meter functioning from stray magnetic fields a soft iron shielding is used.

Last Answer : Gilbert is a unit of magnetomotive force.

Last Answer : Ferrites are a sub-group of ferri-magnetic materials.

Last Answer : In the left hand rule, forefinger always represents magnetic field.

Last Answer : slightly more than unity

Last Answer : The main constituent of permalloy is nickel.

Last Answer : Materials subjected to rapid reversal of magnetism should have high permeability and low hysteresis loss.

Last Answer : The force between two long parallel conductors is inversely proportional to distance between the conductors.

Description : A conductor of length L has current I passing through it, when it is placed parallel to a magnetic field. The force experienced by the conductor will be

Last Answer : A conductor of length L has current I passing through it, when it is placed parallel to a magnetic field. The force experienced by the conductor will be zero.

Last Answer : it is dimensionless.

Last Answer : The left hand rule correlates to current, magnetic field and direction of force on a conductor.

Last Answer : Magnetising steel is normals difficult because it has low permeability.

Last Answer : The ratio of intensity of magnetisation to the magnetisation force is known as susceptibility.