Complete the text about electrification of bodies.

Electrical charging of bodies.

The phenomenon of the appearance of electric charges on bodies during their contact is called ______________.

There are two types of electric charges: ______________ charges of the same sign, ______________ charges of opposite sign.

Bodies with charges of the same sign ______________ each other.

In nature, electric charge can be transferred from one body to another, but in this case, the law of ______________ is fulfilled.

The carrier of a negative charge is a ______________, and a positive charge is a ______________.

Electric current.

Electric current is called the directed movement of ______________ charged particles.

Current sources are devices that create and maintain an electric field (for example, ______________, accumulator, electrostatic machine).

The current strength is the ratio of the electric charge that has passed through the cross-section of a conductor to the time of its passage.

The current strength is denoted by the letter ______________ and is measured in ______________.

The device for measuring current strength is called a ______________ and is connected to the circuit in ______________.

Voltage and resistance

Electrical ______________ characterizes the work done by the electric field when a charge moves.

The unit of voltage is ______________ (symbol).

_______________ is the property of a conductor to limit the current in a circuit. The unit is ______________.

Ohm's law for a section of a circuit: the current strength is directly proportional to ______________ and inversely proportional to ______________.

Work and power of current

The work of an electric current in a section of a circuit is proportional to ______________ and ______________ of the current.

The power of the current is equal to the product of ______________ and ______________.

To measure the work of the current, a ______________ is used.