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Free tnpsc model questions Online Test - MeritNotes
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Online Exam
No. of Questions :10
Remaining Time :
1. Two free parallel wires carrying currents in opposite directions.
(a)
Attract each other
(b)
Repel each other
(c)
Do not affect each other
(d)
None of these
2. Electro motive force is most closely related to
(a)
Magnetic field
(b)
Electric field
(c)
Mechanical force
(d)
Potential difference
3. The coil of an electric heater is made of
(a)
Aluminium
(b)
Tungsten
(c)
Nichrome
(d)
Silver
4. The electrolyte in the dry cell is
(a)
Ammonium chloride
(b)
Acid of sulphur
(c)
Manganese dioxide
(d)
Zinc
5. Magnetite is a/an
(a)
Electromagnet
(b)
Natural magnet
(c)
U-shaped magnet
(d)
None of these
6. The reciprocal of specific resistance is
(a)
Resistance
(b)
Conductive resistance
(c)
Specific conductance
(d)
Plate resistance
7. Magnetic field inside a solenoid is
(a)
Directly proportional to current
(b)
Directly proportional to its length
(c)
Inversely proportional to the total number of turns
(d)
Inversely proportional to current
8. A fuse wire is made of
(a)
An alloy of tin and aluminium
(b)
An alloy of tin and copper
(c)
An alloy of nickel and chromium
(d)
An alloy of tin and lead
9. Fuse wire should have
(a)
High resistance, low melting point
(b)
High resistance, high melting point
(c)
Low resistance, low melting point
(d)
Low resistance, high melting point
10. Electron volt (eV) is a unit of
(a)
Current
(b)
Charge
(c)
Energy
(d)
Potential
