【Daily Topic】【Electrical Edition 20160718】

Electric charge indicates the amount of electricity carried by an object

Electric charge indicates the amount of electricity carried by an object. Generally, the amount of charge is called electric charge, denoted by the symbol Q, and its unit is the coulomb (symbol: C). The coulomb is a very large unit; the electric charge of an electron is e = 1.60*10⁻¹⁹ coulombs. Experiments show that the charge carried by any charged particle is either equal to the charge of an electron or a proton, or an integer multiple of their charges; therefore, 1.60*10⁻¹⁹ coulombs is called the elementary charge. Electric charge can also refer to the amount of electrical energy required by electrical devices; in this case, it is known as electrical energy or electrical work. The unit of electrical energy is kilowatt-hour (kW·h). W=P*t (W represents electrical energy ； P represents active power, with the unit being kW ； t represents time, in units of hours h). The electrical energy here is also divided into active energy and reactive energy. The unit of reactive power is kVar·h.

In physics, electric charge is expressed in units of \"coulomb\". If a steady current of 1 ampere flows through a wire, then the charge that passes through the cross-sectional area of the wire in 1 second is 1 coulomb; 1 coulomb equals 1 ampere·second. The amount of negative charge carried by an electron is e = 1.6021892×10-19 coulombs

Electric charge indicates the amount of electricity carried by an object. Generally, the amount of charge is called electric charge, denoted by the symbol Q, and its unit is the coulomb (symbol: C); the coulomb is a very large unit.

Electric charge indicates the amount of electricity carried by an object. The amount of charge that passes through a cross-section per unit of time is called electric charge, which is denoted by the symbol Q

The magnitude of the charge carried by an object is called electric charge

The amount required for electrical equipment, measured in kWh, or kilowatt-hours, commonly referred to as units of electricity. It is the product of the electrical appliance’s power (W or Kw) and the time it is in use. 2. The electric charge in physics is expressed in units of \"coulomb\". If a steady current of 1 ampere flows through a wire, then the charge that passes through the cross-sectional area of the wire in 1 second is 1 coulomb; 1 coulomb equals 1 ampere·second. The amount of negative charge carried by an electron is e = 1.6021892×10-19 coulombs.

Electric charge refers to the amount of electricity carried by an object. It can also denote the amount of electrical energy required by electrical devices; in this case, it is referred to as electrical energy or electrical work

Electric charge indicates the amount of electricity carried by an object. Generally, the amount of charge is called electric charge, denoted by the symbol Q, and its unit is the coulomb (symbol: C).