to ensure that current flowing through the rotor windings is always in the same direction and the proper coil in the rotor is energized in the respect to the field coils.
to ensure that current flowing through the rotor windings is always in the same direction and the proper coil in the rotor is energized in the respect to the field coils.
gravitational force of attraction between the astronaut and earth provides centripetal force. for the astronaut to move round orbit then gravitational force must be equal to centripetal force
gravitational force of attraction between the astronaut and earth provides centripetal force. for the astronaut to move round orbit then gravitational force must be equal to centripetal force
works based on the principal of mutual induction. an alternating current is supplied to primary coil which I turn produces a changing and alternating flux that surrounds the p.coil. when the second coil (secondary coil) is brought close to it (p.coil) some portion of alternating flux link with s.coiRead more
works based on the principal of mutual induction. an alternating current is supplied to primary coil which I turn produces a changing and alternating flux that surrounds the p.coil. when the second coil (secondary coil) is brought close to it (p.coil) some portion of alternating flux link with s.coil . as the flux is continuously changing there is also a changing flux linkage in the s.coil hence flow of current
FORCE
a push or a pull on an object
a push or a pull on an object
See lessMagnetic effect of electric current
to ensure that current flowing through the rotor windings is always in the same direction and the proper coil in the rotor is energized in the respect to the field coils.
to ensure that current flowing through the rotor windings is always in the same direction and the proper coil in the rotor is energized in the respect to the field coils.
See lessMagnetism and electrical
Repulsion only occur between like poles while attraction occurs between unlike poles and between a pole and magnetic material
Repulsion only occur between like poles while attraction occurs between unlike poles and between a pole and magnetic material
See lessHeat transfer
in conduction no particles involved, which might hinder heat transfer due to their vibration hence faster
in conduction no particles involved, which might hinder heat transfer due to their vibration hence faster
See lessHeat transfer
oil acts as a lubricant hence reduce friction between surfaces in mutual contact
oil acts as a lubricant hence reduce friction between surfaces in mutual contact
See lessForce
gravitational force of attraction between the astronaut and earth provides centripetal force. for the astronaut to move round orbit then gravitational force must be equal to centripetal force
gravitational force of attraction between the astronaut and earth provides centripetal force. for the astronaut to move round orbit then gravitational force must be equal to centripetal force
See lessTransformers
in transformer power is conserved on both ends hence no amplification
in transformer power is conserved on both ends hence no amplification
See lessCharged Particle
a charged particle produces electromagnetic waves upon it's acceleration
a charged particle produces electromagnetic waves upon it’s acceleration
See lessConcrete and steel
concrete and steel have same linear expansivity hence uniform expansion and contraction
concrete and steel have same linear expansivity hence uniform expansion and contraction
See lessWorking of a transformer
works based on the principal of mutual induction. an alternating current is supplied to primary coil which I turn produces a changing and alternating flux that surrounds the p.coil. when the second coil (secondary coil) is brought close to it (p.coil) some portion of alternating flux link with s.coiRead more
works based on the principal of mutual induction. an alternating current is supplied to primary coil which I turn produces a changing and alternating flux that surrounds the p.coil. when the second coil (secondary coil) is brought close to it (p.coil) some portion of alternating flux link with s.coil . as the flux is continuously changing there is also a changing flux linkage in the s.coil hence flow of current
See less