0
When you give 5 hz current to bulb in ac circuit then it will glow?
Wiki User
∙ 13y ago
If it's an incandescent light bulb, then it will glow even with direct current. It's a question of current, not frequency. Incandescent light bulbs were used heavily primarily due to their low costs of production and their compatibility with the industry-standard AC delivered to customers, not the other way around.
If, however, we're talking about a compact light (a fluorescent light), then it will most likely not light up - in typical linear fluorescent lights certain criteria must be met in order for the lamp to light up; in case of compact "energy savers", additional electronics is provided to start the lamp, and it up-converts the mains frequency (among other things), so I don't think this one would light up either.
Wiki User
∙ 13y ago
Add your answer:
Earn +20 pts
Based on what you have seen what must be true for a circuit to light a bulb?
There must be a current through the bulb in order for it to glow.
Will the bulb light if the filament is broken Why?
No, the broken filament breaks the connection which electricity needs to complete the circuit.
Why does a fused bulb not glow?
A fused bulb does not glow because the filament of a fused bulb is broken. Since current can't flow through the filament, it can't get hot enough to glow.
What happens when a battery light the light bulb?
When the switch is turned it completes an electrical circuit. The circuit amperage flows through a high resistance filament in the bulb and it starts to glow. The bright glow from the filament and the reflector behind the bulb is what creates the flashlights beam.
Why does a bulb glow when electric passes through it?
The filament in the bulb has resistance. The current flowing through the resistance of bulb causes the filament to dissipate energy in the form of heat and light. The filament is actually glowing white-hot because of the energy it is dissipating, thus giving off light.
How does bulb glow?
When current passes through the filaments, they get super hot and give out a glow. Mostly these filaments are made out of tungsten as they cool down fast.
What happen in a parellel circuit when the light bulb burn out?
The other bulbs continue to glow, with the same power as before. The total current and power decreases by the amount lost to the one bulb.
If you unscrew a light bulb slightly and leave the power on to it is it still using power?
Possibly. If it still works when you turn it on, the of course it is using power. If it does not work when it otherwise would, then it is definitely not using power, just as if you didn't have the bulb there at all. <<>> With the voltage on the circuit and the light bulb in the circuit, the bulb will glow. If you unscrew the bulb until it goes out the potential voltage will still be in the circuit but no current will flow so no power will be used. In this scenario the unscrewing of the bulb will be the same as using a switch in the circuit to interrupt the current flow.
What are the defects if the bulb didn't glow?
Feeder circuit voltage has been turned off, internal circuit fuse could be blown or filament in bulb burned out.
Why in houses if one bulb is fused the rest of the bulbs continue to glow?
If a circuit is wired in parallel, all the bulbs have their own independent access to electricity, so if one bulb goes out, the others are not affected. If the circuit is wired in series, then one bulb going out will block the current to all the other bulbs as well.
Would a bulb glow if you put a rubber as the switch in a circuit?
because rubber is an insulator
What describes electricity flowing from a battery though a switch to a light bulb?
Circuit Electrons flow form the positive end of the battery through the wire connecting the positive terminal to a switch. The other end of the switch is connected to one terminal on the bulb, the other terminal of the bulb is connected to the negative end of the battery. No electrons (current) flows as long as the switch is open. Once the switch is closed and if the battery has enough voltage and current capacity to make the filament in the bulb glow, then the bulb emits light (together with wasted heat). If the switch is open, no current flows through the entire circuit and the bulb does not glow.
