why an ac solenoid valve attract the plunger eventhough we interchanges the terminal?will the ploes changes?

Answer Posted / nithi

yes.The poles changes for every half-cycle of ac voltage.

Because the polarity of AC voltage is continuosly
changing for every half cycle.
so, interchanging of terminals in ac system
does not show any difference.That's why the ac solenoid
attract the plunger eventhough it's terminals are
interchanged.

Is This Answer Correct ?    6 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

what is the major difference between LIBBP & HIBBP.. which one is most preferable..

2026


What is the difference between AC and DC injection methods for rotor earth fault protection

1686


how to calculate vfd o/p voltage by frequency

1721


How efficiency of thermal plant can be improved?

762


The shot circuit in any winding of transformer result? Explain

797






A 100W electric lamp is supplied from a 115V, 60HZ source. The peak instantaneous power dissipated in the lamp filament is

1869


EXPLIAN THE IMPORTANCE OF POLY PHASE CIRCUIT.

1652


What are the three constants associated with a steady state error?

723


what is meaning of sympathetic tripping with respect to relays and give the values for current carrying capacities for copper and aluminium cables from 16sq mm to 500sq mm

4362


hai friends i have BSNL JTO exam on next month so if any body have model question paper or give preparation tips to my mail id kumar4486@yahoo.co.in this will helpfull for my future .plz & thank u by kumar

1545


List the disadvantages of constant k filters?

1078


Explain what cmos is and its benefits?

652


if a.c supply is given to the motor,, what happen?

1687


What is negative sequence over voltage element?

1429


During underground cabling in landscape area what did we cover the cable with to prevent the electric shock & protect the cable?

1411