Temperature co-efficient of resistance is expressed in terms of
mhos/°C
mhos/ohm°C
ohms/°C
ohms/ohm°C
ohms/ohm°C
The insulation on a current carrying conductor is provided
to prevent leakage of current
to prevent shock
both of above factors
none of above factors
both of above factors
The thickness of insulation provided on the conductor depends on
the magnitude of voltage on the conductor
none of the above
both and
the magnitude of current flowing through it
the magnitude of voltage on the conductor
Out of the following which is not a poor conductor ?
Copper
Carbon
Cast iron
Tungsten
Copper
Out of the following which is an insulating material ?
Silver
Paper
Copper
Gold
Paper
The property of a conductor due to which it passes current is called
conductance
resistance
reluctance
inductance
conductance
Conductance is reciprocal of
capacitance
reluctance
inductance
resistance
resistance
Two bulbs of 500 W and 200 W rated at 250 V will have resistance ratio as
0.184027778
1.044444444
0.086805556
0.209722222
0.086805556
A glass rod when rubbed with silk cloth is charged because
it gives away electrons
it gives away positive charge
its atoms are removed
it takes in proton
it gives away electrons
It becomes more difficult to remove
third electron from the orbit
first electron from the orbit
any electron from the orbit
second electron from the orbit
third electron from the orbit
पोस्ट अच्छी लगी हो तो प्लीज नीचे दिए गए लिंक पर क्लिक कर शेयर जरुर करें
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