What happens when a circuit is closed and current is low?
Current is a low of electrons when circuit is closed it means electrons can flow,when circuit is open no electrons will flow. We can measure the flow of electrons just like the flow of water in a pipe. To measure the flow of electrons we can use the unit as Ampere.
Why does temperature increase when a current flows through a conductor?
> When a current flows throug... Therefore, this power is released in the form of heat in the conductor and this heat increases the temperature of the conductor. Hence, temperature increases.
What is the relationship between voltage and electrons in a circuit?
Voltage is pushing force of electrons in a circuit like a pressure in a water pipe more pressure more water will flow, if less pressure less water will flow. Same voltage if more voltage more electrons will flow, if less voltage less electrons will flow.
How does the magnetic field affect the electrons in a wire?
The magnetic field effects the electrons within the wire. We can increase the strength of magnetic field by wrapping the coil around the iron core, also by increasing the number of turns of coils and also by increasing the amount of the current in the circuit.
What happens when a current goes through a conductor?
An electric current flows when electrons move through a conductor, such as a metal wire. The moving electrons can collide with the ions in the metal. This makes it more difficult for the current to flow, and causes resistance.
When an electric current is flowing through a conductor it?
When an electric flows through a conductor, the number of electrons entering at one end of the conductor from the external battery is equal to the number of electrons leaving from the other end of the conductor.
In this way the number of electrons remains constant in the conductor.
What is volt mean?
A 9V battery is provided 9 joule of energy in form of work or heat per grpup of electrons from one side of battery to other.in this case current of electrons from one side of battery through the light pole which produces light and the electrons flows to the other side of the battery. Therefore 9 joules of heat is produced by light pole.
How does a transformer affect the voltage?
Transformer induces the voltage into primary coil over into a secondary coil this will force electrons to flow if coil in secondary side as closed circuit. In transformer we can increase or decrease the voltage between the primary and secondary coil simply by changing amount of coil on the either side.
What is the purpose of the free electrons in a copper cable?
Inside the copper cable the free electrons around the nucleus of copper atom. The free electrons are able to move atoms randomly in any direction. It we connect the copper cable to a closed circuit with the power source such as battery voltage will be force the electron to move and this will overflow in the same direction and return back to the other terminal of the battery.
How does an induction motor work?
This is how electromagnets works and this basis the induction motor works. When magnetic field passes across the wire it will induces the voltage in their wire. The induced electromagnetic force will push the electrons in certain direction. Learn More: Fleming Left Hand Rule- Easy Remembering Tips.
What does it mean when an electron is in a safe circuit?
In safe circuit this means the electrons will flow along two terminals positive and negative power source. So we can add things like light poles and this electron have to pass through this and get other terminal we can use as light. The circuit will open or close, in closed circuit electrons will flow around, in open circuit electrons will not able to flow.
Why are resistors used in circuits?
This is to protect components from too many electrons flowing through it. We can also use light and heat such as incandescent light.
Why are materials different?
Materials are just different because the construction of atom is slightly different. The atoms are made from free particles which are found from the center of the nucleus and free particles are found outside of the nucleus. Center of the atom the nucleus is present in nucleus the neutrons are present which have no charge.
