Who discovered the most important electrical effects which is the magnetic effect?
Hans Christian Oersted
Sir Charles Wheatstone
James Clerk Maxwell
Correct Answer :
Download Objective type questions of
Visit our PDF store
Get all objective type questions of Electricity Fundamentals MCQ
comments powered by Disqus.
Calculate the flux density that will be produced by the field intensity of 2000 a. t/m for a permeability…
Which of the following is a natural magnet?
If the value of 25 a conductor is 1/255 per oCa then the value of 20is
Defined as the ratio of the volume occupied by the atoms or ions in a unit cell divided by the volume…
A t/m is a unit of
Electron is a Greek word for
Hydrogen is an example of a _____ material.
What is the unit of magnetomotive force?
A law stating that the magnetic susceptibilities of most paramagnetic substances are inversely proportional…
The space outside the magnet where its pole have a force of attraction or repulsion on a magnetic pole…
Electric field intensity is a ________.
The air space between poles of magnets
The force acting on a pole of 5 Wb is 25 N. What is the intensity of the magnetic field?
Magnetic fields do not interact with
The temperature coefficient of resistance of conductors is
Another term for corona discharge.
A law establishing the fact that the algebraic su of the rises and drops of the mmf around a closed…
A germanium atom has an atomic weight of72. How many neutrons are there?
How many turns are needed to produce a magnetomotive force of 1000 A.t for a coil with 6 amperes?
When the ferromagnetic substance is inserted in a current- carrying solenoida the magnetic field is
If the number of valence electrons of an atom is exactly 4a then the substance is called
The temperature coefficient of resistance of eureka is
What is the maximum number of electrons that can be accommodated in the last orbit of an atom?
The unit of flux density is
Electromotive force in a circuit
An electron- volt (eV) is a unit of
Electric potential is a _______ quantity.
If the distance between two magnetic poles decreases by 2 timesa the force between them
A law that states that the current in a thermionic diode varies directly with the three- halves power…
The core of a transformer heats up when its primary is fed from an ac source because of
Join our Chat Group
Join our Twitter Group
Join our Pinterest Group
Join our Facebook Group
Subscribe to our Email Newsletter