Yes, it's true. When a light bulb is turned on, most of the electrical energy is converted into heat, but some of it is also converted into light energy. This is what allows the light bulb to produce light.
While a light bulb does not technically act as a resistor, in practice it does impede the flow of electrons due to its resistance. As electrons pass through the filament of the light bulb, they encounter resistance, which causes them to release energy in the form of heat and light. This phenomenon is what allows the light bulb to produce light.
While Thomas Edison is often credited with inventing the light bulb, the light bulb was actually developed by several inventors before him. Edison improved upon existing designs and was able to make the light bulb practical for everyday use by developing a long-lasting and reliable filament.
It is true that a switch is used to open and close a circut.
The material must have a high level of opacity to absorb or reflect most of the light. The opaque nature of the material prevents light from passing through it, leading to absorption or reflection.
There must be a current through the bulb in order for it to glow.
It stops flowing. An analogy to this is the kitchen faucet ... water is always "at the ready" behind the valve, ready to flow when it is enabled. Same is true in an electrical circuit - once the circuit is broken (valve closed in above analogy) the flow of electrons ceases. If there is a light bulb which is not on it is a open circuit. If the light bulb is still on it is parallel circuit which has lot of wires causes some of the lights to go on and some to go of.
Yes, it's true. When a light bulb is turned on, most of the electrical energy is converted into heat, but some of it is also converted into light energy. This is what allows the light bulb to produce light.
True. Light is a form of electromagnetic energy.
True
Henricg Globel invented the first true light built in 1854 in Germany.
No. For electrons to flow, you need a current.
True. The voltage rating of a fuse must be greater than the circuit voltage.
Yes, it is not true that a person died from electrocution after putting a light bulb in their mouth, as debunked by Snopes.
While a light bulb does not technically act as a resistor, in practice it does impede the flow of electrons due to its resistance. As electrons pass through the filament of the light bulb, they encounter resistance, which causes them to release energy in the form of heat and light. This phenomenon is what allows the light bulb to produce light.
The simplest form of an electrical circuit is when an energy source (such as a battery) is connected to a load (such as a light bulb or a resistor). The connections must be made in such a way as to allow the energy to flow from the source, through the load and back into the source to form a loop.
A circuit breaker must be reset to ON after a short circuit but does not need to be replaced. It depends on the type of CB. A fuse is also a circuit breaker and it needs to be replaced after a short circuit. Relayed circuit breakers have to be "picked up" after a dropout and need not be replaced as such.