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Free tnpsc model questions Online Test - MeritNotes
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Online Exam
No. of Questions :10
Remaining Time :
1. For direct current, the resistance offered by a capacitor is
(a)
greater than unity
(b)
infinity
(c)
zero
(d)
unity
2. Eddy current can be minimized
(a)
by using thick copper sheets
(b)
by setting up a strong magnetic field
(c)
by using insulated thick sheets
(d)
by using thin laminated sheets
3. In high power AC dynamoes magnetic field is provided by
(a)
cylindrical magnets
(b)
horseshoe magnets
(c)
permanent magnets
(d)
electromagnets
4. RLC series resonant circuit is often called
(a)
donor
(b)
detector
(c)
acceptor
(d)
radio
5. The phenomenon of producing an induced emf in a coil due to the change in current in the other coil is known as
(a)
electrostatic induction
(b)
static induction
(c)
self induction
(d)
mutual induction
6. The unit of inductive reactance is
(a)
Ampere
(b)
Mho
(c)
Volt
(d)
Ohm
7. Lenz's law in accordance with the law of
(a)
conservation of charges
(b)
conservation of energy
(c)
conservation of momentum
(d)
conservation of flux
8. Transformer works on the principle of
(a)
eddy currents
(b)
action of points
(c)
electromagnetic induction
(d)
self induction
9. _____ is defined as the number of magnetic lines of force crossing a closed area.
(a)
Magnetic induction
(b)
Mutual induction
(c)
Magnetic flux
(d)
Self induction
10. The direction of eddy current is given by
(a)
Ohm's law
(b)
Lenz's law
(c)
Generator rule
(d)
Fleming's left hand rule
