The magnetic flux through a wire loop in a magnetic field does not d
T he area of the loop
The magnitude of the field
The shape of the loop
The angle between the plane of the loop and the direction
Correct Answer :
C. The shape of the loop
Related Questions
What is the SI unit of magnetic flux?
Tesla
Weber
Maxwell
Gauss
What bond is formed when electrons in the outermost energy orbits of the atoms are shared between two or more electrons?
Ionic
Covalent
Metallic
Van der Waals
The physical motion resulting from the forces of magnetic fields is called
Motor action
Rotation
Repulsion
Torque action
Magnetic intensity is a
Phasor quantity
Physical quantity
Scalar quantity
Vector quantity
Whenever a conductor cuts magnetic fluxa an emf is induced in it. This is known as
Coulomb's law
Joule's law
Faraday's law
Ohm's law
Which of the following is a paramagnetic material?
Carbon
Copper
Bismuth
Oxygen
What is used as the dielectric material in high voltage transformers?
Mica
Paraffin
Porcelain
Oiled paper
The dielectric constant of most materials lies between
1 and 10
10 and 20
20 and 50
50 and 100
A magnetic material losses its ferromagnetic properties at a point called
Curie temperature
Inferred absolute temperature
Room temperature
Absolute temperature
Magnetic effects of the earth as a huge magnet with north and south poles.
Diamagnetic
Ferromagnetic
Terrestrial magnetism
Terrestrial ferromagnetism
Mmf in a magnetic circuit corresponds to _____ in an electric circuit
Emf
Voltage drop
Electric Field Intensity
Potential gradient
An electron- volt (eV) is a unit of
Energy
Potential difference
Charge
Momentum
Under ordinary conditionsa a body is considered
positively charged
neutral
negatively charged
stable
The uncharged particles which have no effect on its atomic charge.
Nucleons
Electrons
Protons
Neutrons
The emf induced in a coil due to the changing current of another neighboring coil is called
Mutually induced emf
Self induced emf
Statically induced emf
Dynamically induced emf
The amount of magnetizing force to counter balance the resid magnetic material is referred to as
Reluctivity
Susceptivity
Coercivity
Retentivity
When a conductor is stationary and the magnetic field is moving or changing the emf induced is called
Statically induced emf
Mutually induced emf
Self induced emf
Dynamically induced emf
If you hold the conductor with right hand so that the stretched thumb points in the direction of the currenta then encircling fingers will give the direction of magnetic lines of force round the conductor. This is known as
Left hand cork screw rule
Right hand cork screw rule
Left hand rule
Right hand rule
The idea of preventing one component from affecting another through their common electric and magnetic field is referred to as
Hall effect
Grounding
Shielding
Limiting
The net electrical charge in an isolated system remains constant. This is known as
Law of conservation of charge
Coulomb's first law
Coulomb's second law
Law of conservation of energy
What is the relative permittivity of air?
8.854 × 10^-12
4 × 10^7
If the number of valence electrons of an atom is less than 4a the substance is called
a conductor
a semiconductor
an insulator
a superconductor
A group of magnetically aligned atoms is called
Range
Lattice
Domain
Crystal
The magnetic field inside a solenoid
is zero
is uniform
increases with distance from the axis
decreases with distance from the axis
If the number of valence electrons of an atom is exactly 4a then the substance is called
a semiconductor
a conductor
an insulator
a cryogenic conductor
The magnetic potential in a magnetic circuit can be measured in terms of
Mmf
Emf
Farad
Coulomb
Three charges of +5 Ca -6 C and +9 C are placed inside a sphere. What is the total flux passing through the surface of sphere?
8 C
14 C
20 C
-6 C
Hydrogen is an example of a _____ material.
Paramagnetic
Diamagnetic
Ferromagnetic
N on- magnetic
A negatively charge body has
deficit of electrons
excess of protons
excess of electrons
deficit of neutrons
A theorem which states that an electric current flowing in a circuit produces a magnetic field at external points equivalent to that due to a magnetic shell whose bounding edge is the conductor and whose strength of the current.
Joule's law
Faraday's law
Volta's theorem
Ampere's theorem