Class – 8th physics chapter – chemical effects of electric current
Electricity requires an energy source to be successful.
The first thing necessary for electricity is an energy source.
The energy can be converted from one form to another using a battery or a cell.
✦
Indicator is used to determine if current is flowing in a circuit
Bulb, fan, and other devices can be used as indicators
Electricity flows only in closed circuits and certain materials generate electricity
✦
Electric energy is converted into circuit using conductors and indicators.
The energy source in a circuit is a cell, which stores chemical energy.
Metals act as conductors and allow electricity to pass through them, while insulators do not allow
electricity to pass through them.
✦
Conductors allow electricity to pass through them, while insulators do not.
Conductors contain free electrons that carry energy, while insulators have no free electrons .
Using an insulator in a circuit can prevent the transmission of energy and cause the circuit to be
incomplete.
✦
The movement of electrons in a circuit leads to the transmission of energy.
Electrons with positive charge attract and remove electrons, creating a flow of electrons.
The movement of electrons from one place to another creates an electric current in a closed circuit.
# extra information on flow of electricity.
Electrons in an atom's outermost shells are sometimes not strongly
attracted to the protons in the nucleus. This means they can be pushed out
of their orbits by external forces.
Electric field
Electricity requires an energy source to be successful.
The first thing necessary for electricity is an energy source.
The energy can be converted from one form to another using a battery or a cell.
✦
Indicator is used to determine if current is flowing in a circuit
Bulb, fan, and other devices can be used as indicators
Electricity flows only in closed circuits and certain materials generate electricity
✦
Electric energy is converted into circuit using conductors and indicators.
The energy source in a circuit is a cell, which stores chemical energy.
Metals act as conductors and allow electricity to pass through them, while insulators do not allow
electricity to pass through them.
✦
Conductors allow electricity to pass through them, while insulators do not.
Conductors contain free electrons that carry energy, while insulators have no free electrons .
Using an insulator in a circuit can prevent the transmission of energy and cause the circuit to be
incomplete.
✦
The movement of electrons in a circuit leads to the transmission of energy.
Electrons with positive charge attract and remove electrons, creating a flow of electrons.
The movement of electrons from one place to another creates an electric current in a closed circuit.
# extra information on flow of electricity.
Electrons in an atom's outermost shells are sometimes not strongly
attracted to the protons in the nucleus. This means they can be pushed out
of their orbits by external forces.
Electric field
