Question

When burning normally, the temperature of the filament in a 230 V, 150 W gas-filled tungsten lamp is
2,750°C. Assuming a room temperature of 16°C, calculate (a) the normal current taken by the lamp
(b) the current taken at the moment of switching on. Temperature coefficient of tungsten is 0.0047
Ω/Ω°C at 0°C.

Answer 1

Answer:

there is answer in pic

Explanation:

Answer 2

Answer:

Normally Harvested

Explanation: