Electrical Electronics Engineering Job Interview MCQ 5
1.
As the temperature of
a metallic resistor is increased the product of its resistivity and
conductivity remain constant.
2.
The resistance of
human body is about 1000 ohms.
3.
The filament of an
electric bulb is made of tungsten.
4.
The hot resistance of
electric bulb’s filament is higher than its cold resistance because the
temperature co-efficient of filament is
positive.
5.
A nichrome wire used
as a heater coil has a resistance of 2 ohms/m .For a heater of 1 kW at 200 V,
the length of the wire required is 20m.
6.
When 1 V is applied in
a circuit a current of 1u A flows through it. The conductance of the current is 1 u mho.
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