Main causes of noisy solenoid are______________?

Related Mcqs:

How does the magnetic compass needle behave in a magnetic field ?

A. It assures a position right angle to magnetic field B. It starts rotating C. It assures a position which follows a line of magnetic flux D. None of the above...

Which of the following materials are diamagnetic ?

A. Silver B. Copper C. Silver and copper D. Iron...

A square cross-sectional magnet has a pole strength of 1 x 10 Wb and cross sectional area of 20 mm x 20 mm. What is the strength at a distance of 100 mm from the unit pole in air ?

A. 63.38 N/Wb B. 633.8 N/Wb C. 6338 N/Wb D. 63380 N/Wb...

A 300 mm long conductor is carrying a current of 10 A and is situated at right angles to a magnetic field having a flux density of 0.8 T ; the force on the conductor will be____________?

A. 240 N B. 24 N C. 2.4 N D. 0.24 N...

Materials subjected to rapid reversal of magnetism should have______________?

A. large area oiB-H loop B. high permeability and low hysteresis loss C. high co-ercivity and high retentivity D. high co-ercivity and low density...