alleryIn an electric bulb the filament gets heated to nearly 3400 °C and emits light. Which material is used for this filament?
ACopper
BNichrome
CTungsten
DCarbon
Answer & Solution
Correct answer: C. Tungsten
1. A bulb filament must withstand a very high temperature (about 3400 °C) and glow.
2. The chapter states a tungsten wire is used in an electric bulb for this purpose.
3. The option Nichrome is the heater-coil alloy, used in cookers and heaters, not in bulbs.
_Source: Balbharati (Maharashtra Board) Class 10 Science & Technology, Ch 4 "Effects of Electric Current", p.58_
Keep practising Effects of Electric Current
Browse all Effects of Electric Current questions for Maharashtra SSC (Class 10), or explore more Science topics.
Related questions
In India, the frequency of the alternating current (AC) supplied by power stations is:Fleming's right-hand rule gives the direction of the induced current. In this rule, the thWhich scientist demonstrated in 1831 that an electric current can be produced in a conductElectromagnetic induction is best described as the:An electric motor is a device that converts:In Fleming's left-hand rule, with the thumb, index finger and middle finger held mutually A current-carrying conductor is placed in a magnetic field. The force on it is maximum wheThe magnetic field produced by a current-carrying solenoid most closely resembles the fiel