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Current Electricity
Ampere-hour is the unit of
Strength of current
Power
Energy
Quantity of electricity
Strength of current
Power
Energy
Quantity of electricity
Answer
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Related Question
Current Electricity
Eureka has _______ temperature co-efficient of resistance.
None of the listed here
Positive
Almost zero
Negative
None of the listed here
Positive
Almost zero
Negative
Answer
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Current Electricity
A wire having very high value of conductance is said to be
Moderately good conductor
Insulator
None of the listed here
Very good conductor
Moderately good conductor
Insulator
None of the listed here
Very good conductor
Answer
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Current Electricity
When current flows through heater coil it glows but supply wiring does not glow because
Supply wires are made of superior material
Resistance of heater coil is more than the supply wires
Supply wiring is covered with insulation layer
Current through supply line flows at slower speed
Supply wires are made of superior material
Resistance of heater coil is more than the supply wires
Supply wiring is covered with insulation layer
Current through supply line flows at slower speed
Answer
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Current Electricity
Current velocity through a copper conductor is
of the order of a few ^.s/m
the same as propagation velocity of electric energy
nearly 3 x 108 m/s
independent of current strength
of the order of a few ^.s/m
the same as propagation velocity of electric energy
nearly 3 x 108 m/s
independent of current strength
Answer
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Current Electricity
Two bulbs of 500 W and 200 W rated at 250 V will have resistance ratio as
25 : 4
5 : 2
2 : 5
4 : 25
25 : 4
5 : 2
2 : 5
4 : 25
Answer
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