If a long hollow copper pipe carries a direct current, the magnetic field associated with the current will be
As the current inside the pipe is zero.Therefore the magnetic field associated with the current will be only outside the... View Article
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Equipotential surfaces cannot____________
Answer: Equipotential surfaces cannot intersect. If equipotential surfaces intersect at that point then electric field lines will also intersect which is not... View Article
The shape of equipotential surface for an infinite line charge is:
The shape of equipotential surface for an infinite line charge is coaxial cylindrical.
For any charge configuration, equipotential surface through a point is _____to the electric field at that point.
Equipotential surface is always perpendicular to the electric field because work done is moving a charge along an equipotential surface is... View Article
Optical analogue of an equipotential surface is
Wavefronts are surfaces of constant phase. Similarly, equipotential surface due to point charge is spherical in shape and has same... View Article
The displacement of charges inside the dielectric stops when
The displacement of charges inside the dielectric stops when the external force on the charges of the molecules is balanced... View Article
The amount of work done in moving a unit positive charge through distance of 10 cm on an equipotential surface is
Work done on equipotential surface is zero.
Electric potential at a point located far away from the charge is taken to be
Electric potential at a point located far away from the charge is taken to be zero.
E = -dV/dr, here the negative sign signifies that
The negative sign shows the direction of E, it is in the direction in which V decreases.
A hollow metal sphere of radius 20 cm is charged such that the potential on its surface is 120 Volt. The potential at the centre of the sphere is
Potential inside the charged sphere is constant and equal to potential on the surface. Hence the potential at the centre... View Article
Negative mutual potential energy corresponds to attraction between two charges
Yes, Negative mutual potential energy corresponds to attraction between two charges.
What is a Dielectric?
A dielectric is a type of insulator that becomes polarised when it comes in contact with an electrical field. Such... View Article
Some charge is being given to a conductor. Then its potential:
Electrostatic potential is constant throughout the volume of the conductor . The potential of a conductor remains unchanged on addition... View Article
Materials in which outer electrons are loosely bound and free to move within the metal at normal temperature are called
In metallic conductors, the electrons of the outer shells of the atoms are loosely bound to the nucleus. They easily... View Article
A bird sitting on a bare power cable does not feel any shock because of
Bird will not get a shock unless you complete the circuit to ground. Current passes only when there is difference in... View Article
A hollow metal sphere of radius 10 cm is charged such that the potential on its surface is 80 volt. The potential at the centre of the sphere is
Potential inside the charged sphere is constant and equal to potential on the surface of the conductor.
Positive mutual potential energy of a system containing two charges corresponds to
Yes, Negative mutual potential energy corresponds to attraction between two charges.
Two conductors having same type of charges are connected by a conducting wire. There would not be any amount of charges on them if:
When there is potential difference across the conductor, the electric field is set up. Due to this charge will flow... View Article
Direction of electric field just outside the surface of a charged conductor is
If the electric field is not normal to the surface, then it will have a component along the surface which... View Article
Work done in carrying 2 C charge in a circular path of radius 2 m around a charge of 10 C is
work done in moving a charge along a closed path is zero.
