Magnetism and Electromagnetism How does the magnetic compass needle behave in a magnetic field? None of the listed here It starts rotating It assures a position right angle to magnetic field It assures a position which follows a line of magnetic flux None of the listed here It starts rotating It assures a position right angle to magnetic field It assures a position which follows a line of magnetic flux ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism When the speed at which a conductor is moved through a magnetic field is increased, the induced voltage reaches zero increases decreases remains constant reaches zero increases decreases remains constant ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Out of the following statements, concerning an electric field, which statement is not true? 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 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 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 ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism What will be the current passing through the ring shaped air cored coil when number of turns is 800 and ampere turns are 3200? 12 8 6 4 12 8 6 4 ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The direction of magnetic lines of force is From north pole to south pole From south pole to north pole None of the listed here From one end of the magnet to another From north pole to south pole From south pole to north pole None of the listed here From one end of the magnet to another ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism A certain amount of current flows through a ring shaped coil with fixed number of turns. How does the magnetic induction B varies inside the coil if an iron core is threaded into coil without dimensional change of coil? Increases Decreases Remains same First increases and then decreases depending on the depth of iron in¬sertion Increases Decreases Remains same First increases and then decreases depending on the depth of iron in¬sertion ANSWER DOWNLOAD EXAMIANS APP
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