When an iron piece is placed in a magnetic field? Mark as favorite Copy Link the magnetic lines of force will bend away from their usual paths in order to go away from the piece the magnetic lines of force will bend away from their usual paths in order to pass through the piece the magnetic field will not be affected the iron piece will break Check Answer
The electromagnet has 50 turns and a current of 1 A flows through the coil. If the length of the magnet circuit is 200 mm, what is the magnetic field strength? Mark as favorite Copy Link 2500 AT/m 250 AT/m 25 AT/m 2.5 AT/m Check Answer
Which of the following is the unit of magnetic flux density? Mark as favorite Copy Link weber lumens tesla none of the above Check Answer
Out of the following statements, concerning an electric field, which statement is not true? Mark as favorite Copy Link The electric intensity is a vector quantity The electric field intensity at a point is numerically equal to the force exerted upon a charge placed at that point An electric field is defined as a point in space at which an electric charge would experience a force Unit field intensity in the exertion of a force of one newton on a charge of one coulomb Check Answer
A magnetic field exists around? Mark as favorite Copy Link iron copper aluminium moving charges Check Answer
If a copper disc isrotated rapidly below a freely suspended magnetic needle, the magnetic needle shall start rotating with a velocity? Mark as favorite Copy Link less than that of disc but in opposite direction equal to that of disc and in the same direction equal to that of disc and in the Opposite direction ess than that of disc and in the same direction Check Answer
What will be the current passing through the ring shaped air cored coil when number of turns is 800 and ampere turns are 3200? Mark as favorite Copy Link 2 4 6 8 Check Answer
Gilbert is a unit of? Mark as favorite Copy Link electromotive force magnetomotive force conductance permittivity Check Answer
The magnetism left in the iron after exciting field has been removed is known as? Mark as favorite Copy Link permeance residual magnetism susceptance reluctance Check Answer
The most effective and quickest way of making a magnet from soft iron is by? Mark as favorite Copy Link placing it inside a coil carrying current induction the use of permanent magnet rubbing with another magnet Check Answer