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Free tnpsc model questions Online Test - MeritNotes
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No. of Questions :10
Remaining Time :
1. Eddy current was discovered by
(a)
Foucault
(b)
Faraday
(c)
Oersted
(d)
Lenz
2. The armature of AC generator is wound on
(a)
copper frame
(b)
soft iron core
(c)
wood
(d)
bakelite
3. Power from all power stations are fed to the
(a)
collecting station
(b)
pycons
(c)
transformer
(d)
grid
4. The self inductance of a straight conductor is
(a)
zero
(b)
infinity
(c)
very large
(d)
very small
5. Iron loss is otherwise called
(a)
Eddy current loss
(b)
Flux loss
(c)
Copper loss
(d)
Hysteresis loss
6. In Fleming's right hand rule the forefinger shows the direction of
(a)
Motion of the conductor
(b)
Magnetic field
(c)
Electric field
(d)
Current
7. The property of a coil which enables to produce an opposing induced emf in it when the current in
(a)
static induction
(b)
self induction
(c)
mutually induction
(d)
none of the above
8. Electromagnetic induction is used in
(a)
choke coil
(b)
ac generator
(c)
room heater
(d)
transformer
9. Who discovered that a current carrying conductor is associated with a magnetic field?
(a)
Christian Oersted
(b)
Christian Huygens
(c)
Fleming
(d)
Michael Faraday
10. The common domestic appliance where you make use of choke coil is
(a)
Washing machine
(b)
Filament lamb
(c)
Fluorescent tube
(d)
Fridge