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Voltage is the reason that drives the charge to move directionally to form current. The reason why the zuhehuati.89ix.comguandao.89ix.comhuanwanggui.89ix.compeidiangui.89ix.comcurrent can flow in the youle.89ix.comhuatiw.89ix.comconductor is also because there is a difference between high potential and low potential in the current. This difference is called potential difference, or voltage. Let me put it another way. In a circuit, the potential difference between any two points is called the voltage between the two points. The letter V is usually used to represent the voltage.

The power supply is a device that provides voltage to both ends of an electrical appliance. Voltage can be measured by a voltmeter (symbol: V).

Voltage Law of Series Circuit: The total voltage at both ends of Series Circuit is equal to the sum of the voltage at both ends of each part of Circuit.

Formula: U = U1 + U2

Voltage law of parallel circuit: The voltage of each branch of parallel circuit is equal and equal to the voltage of power supply.

Formula: U = U1 = U2

Ohm's Law: U = IR (I is current, R is resistance), but this formula only applies to pure resistance circuits.

The total voltage is equal to the sum of partial voltage, U = U1 + U2.

Parallel voltage characteristics, branch voltage are equal supply voltage, U = U1 = U2 #### 网站导航

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