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WorksheetsBEE online Quiz
Total questions: 11
Worksheet time: 6mins
Transformer works on the principle of
self
mutual induction
magnetic fiels
electric field
The current which flows only in one direction is called
unidirectional
bi directional
linear
mesh
At resonance ..............power is transfered to load
maximum
minimum
linear
non linear
no load current of transformer io is
sum of im+iw
vector sum of im+iw
im=iw
im
emf equation of transformer
e=4.44fQN
E=4.44F
E=4.44FN
E
transformer is a....................machine
constant flux
electric field
network
none
star to star connection is used for ............ application
high voltage
low voltage
low current
none
delta to delta connection is used for .................application
low voltage
high voltage
linear
none
form factor value ........
2.11
1.11
1.41
2
peak factor value ...........
1.414
2.414
1.11
0.9
practical value of power factor..........
0.8
0.9
0.2
0.6
