Current Electricity
The hot wire of electric bulb's filament is higher than its cold resistance because the temperature co-efficient of filament is

Zero
None of the listed here
Negative
Positive

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Current Electricity
When current flows through heater coil it glows but supply wiring does not glow because

Supply wiring is covered with insulation layer
Resistance of heater coil is more than the supply wires
Current through supply line flows at slower speed
Supply wires are made of superior material

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Current Electricity
In a series circuit with unequal resistances

The highest resistance has the most of the current through it
The lowest resistance has the highest current
The highest resistance has the highest voltage drop
The lowest resistance has the highest voltage drop

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