1.A coil having 90 turns is connected to 120V,60Hz source.If the effective value of the magnetizing current is 4A,calculate:
a)the peak value of flux
b)the peak value of the m.m.f.
c)the inductive reactance of yhe coil
d)the inductance of the coil.
2.The no-load current of a transformer is 5.0A at 0.3 power factor when supplied at 240V,50Hz.The number of turns on the primary winding is 200.Calculate:
a)the maximum value of the flux in the core
b)the core loss
c)the magnetising current
d)the core loss current.
a)the peak value of flux
b)the peak value of the m.m.f.
c)the inductive reactance of yhe coil
d)the inductance of the coil.
2.The no-load current of a transformer is 5.0A at 0.3 power factor when supplied at 240V,50Hz.The number of turns on the primary winding is 200.Calculate:
a)the maximum value of the flux in the core
b)the core loss
c)the magnetising current
d)the core loss current.