Electrical current in a light bulb causes the bulb element to heat up i2R and some heat gets to the level to excite the element electrons. The excited electrons radiate light when returning to normal levels.
Asked in Energy
What is an example of kenetic energy being transformed to electrical energy?
The rotational force of an electrical generator using magnetism to create an electrical current. ...
When electrical current flows through the metal filament of a light bulbelectrical energy is coverted to?
When electrical current flows through a lightbulb (whether it's CCFL, halogen, or incandescent), the trade-off is light and heat energy. ...
What are the advantages and disadvantages of electrical current?
One of the main advantage of electric current is that it is a source of energy which is used and transformed into other forms of energy. Disadvantage. It can be sometimes dangerous if electrical appliances are not handled properly. ...
What type of energy do the circuit the batteries in the circuit have?
What is the electrical energy in a light bulb?
The energy used by a lightbulb in kWh can be calculated from the voltage across the bulb, the current through the bulb, and the number of hours of operation of the bulb. energy = voltage * current * hours / 1000 ...
How can you measure energy from a light bulb?
You could use a wattmeter (a device that measures the electrical voltage and current to determine and display the power used by the lightbulb). That would tell you how much power (energy) is dissipated by the lightbulb and radiated as light and heat. This Is Usually Measured in LUX. ...
Asked in Light Bulbs and Artificial Lighting
Why is there zero current when a lightbulb burns out?
because there is no voltage and resistance?
Asked in Flashlights
What energy transformation takes place in a flashlight?
Battery (chemical energy) goes to the wires (electrical energy) which goes to the light bulb (thermal and electromagnetic energy. In the bulb of a traditional flashlight, electric current energy is transformed to heat and then partially to light, when the temperature of the filament in the bulb is sufficient. In an LED type flashlight, little heat is produced and more of the electrical current energy is transformed into light. ...
Asked in Physics
Does more current flow into a lightbulb than out of it?
No. By Kirchhof's Current Law, any current that flows in must flow out again. ...
Asked in Energy, Home Appliances, Cooking Equipment
What type of energy transformed by a toaster into thermal energy?
Toasters are powered by an electrical current that heats up the metal prongs in order to brown the toast; therefore, the thermal energy toasting the bread is caused by electrical energy. ...
Asked in Home Electricity
How alternating current is transformed into direct current?
Ac current is sin wave DC current is square
Asked in Physics
How is electricity generated in a battery?
A battery consists of a group of 2 or more primary or secondary cells which convert chemical energy into electrical energy. One portion of the chemical energy is transformed into heat energy and the other portion into an electrical current. ...
Asked in Science
How can you tell there is friction and resistance in a bulb?
Electrical resistance is technically not the same as friction though one could be used as a model for the other. Electrical resistance in a light bulb can be seen by the light that is emitted due to the heating of the filament when current is passed through it (electrical potential is transformed into heat). ...
Describe the purpose of the commutator in a DC motor?
Commutators are used to get unidirectional current Flow through the external circuits in DC generator system.A commutator is an electrical switch that periodically reverses the current direction in an electric motor or electrical generator. ...
Difference between electrical current and electrical charge?
current is the flow of charge.
Asked in Home Electricity
What electrical current flows through electrical home devices?
The electrical current for a home device travels in a circuit.
What equipment is needed for testing electrical current?
For measuring electrical Current the electrical equipment used is Amphere meter. This equipment tells the current flow in the equipment. ...