Home
Class 12
PHYSICS
The operating temperature of the filamen...

The operating temperature of the filament of lamp is `2000^(@) C`. The temperature coefficient of the material of the filament is `0.005^(@) C^(-1)`. If the atmospheric temperature is `0^(@) C`, then the current in the `100 W - 200 V` lamp when it is switched on is nearest to

Promotional Banner

Similar Questions

Explore conceptually related problems

The resistance of a coi is 4.2Omega at 100^(@)C and the temperature coefficient of resistance of its material is (0.004)/(.^(@)C) . Its resistance at 0^(@)C is

The temperature coefficient of resistance of the material of a wire is 0.00125^(@)C^(-1) . Its resistance at 27^(@)C is 1 Omega . At what temperature will its resistance be 2 Omega ?

The temperature coefficient of resistance of a wire is 0.00145^(@)C^(-1) . At 100^(@)C its resistance is 2Omega . At what temperature the resistance of the wire be 3Omega ?

The temperature of the filament in a light bulb is about 1800^(@)C , what will it be on Fahrenheit scale?

The temperature coefficient of resistance for a wire is 0.00125^(@)C^(-1) . At 300 K its resistance is 1Omega . The temperature at which the resistance becomes 2Omega is

The temperature coefficient of a resistance wire is 0.00 12^(@)C^(-1) . At 300 K, its resistance is 1 Omega . At what temperature the resistance of the wire will be 2 Omega ?

Temperature coefficient of resistance of a wire at 0^(@)C is 0.00125^(@)C^(-1) . At 25^(@)C its resistance is 1 Omega . The resitance of the wire will be 1.2 Omega at

The resistance of hot tungsten filament is about 10 times the cold resistance. What will be the resistance of 100 W and 200 V lamp when not in use?