Current Electricity: JEE Main 2005 Physics question

JEE Main 2005 · Annual, Paper 1 · Q6412

JEE Main 2005Annual, Paper 1PhysicsEasyCurrent Electricity150× since 2002

The resistance of hot tungsten filament is about

10

times the cold resistance. What will be resistance of

100

W

and

200

V

lamp when not in use ?

JEE Main 2005 · Annual, Paper 1 · Q6412

JEE Main 2005Annual, Paper 1PhysicsEasyCurrent Electricity150× since 2002

The resistance of hot tungsten filament is about

10

times the cold resistance. What will be resistance of

100

W

and

200

V

lamp when not in use ?

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