engineering recuitment MP Vyapam Sub Engineer Mock Test 2024 Utilization of Electrical Energy Lamps and Bulbs
Choose the correct alternative regarding Neon Lamps.
1
The neon lamp consists of neon and argon gas.
2
The power factor of the neon tube is higher.
3
The neon lamp normally emits green colour.
4
If helium gas is used instead of neon, a greenish red colour is obtained.