The resistance of hot tungsten filament is about … times the cold resistance. What will be resistance of … … and … … lamp when not in use ?

Current Electricity

JEE Main 2005 · Annual, Paper 1 · Q6412

PhysicsEasy226×since 2002Q6412

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

PhysicsEasy226×since 2002Q6412

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 ?