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Characteristics of series and parallel current and voltage
The sum of the voltage of each part of the series circuit is equal to the total voltage, the current is equal, and the total resistance is equal to the sum of the resistance of each point
The sum of the currents in each branch of the parallel circuit is equal to the total current, the voltages are equal, and the reciprocal of the total resistance is equal to the sum of the reciprocal of the resistances
What are the characteristics of voltage in series and parallel circuits?
Is the voltage of series circuit equal everywhere? Is the voltage of parallel circuit equal to the sum of branches on the main circuit?
No, you can think like this:
The characteristic of parallel circuit is that each branch does not affect each other, so the supply voltage provided to them should be the same, so the voltage of u = U1 = U2 is equal everywhere
The series circuit is to give each consumer voltage, so u = U1 + U2, the total voltage is equal to the sum of the partial voltage
What is the law of voltage and current in series circuit and parallel circuit?
Students give you the most detailed and popular voltage law of the series circuit: the total voltage at both ends of the series circuit is equal to the sum of the voltages at both ends of the electrical appliances, that is: u = U1 + U2, U1 ∶ U2 ∶ U3 = IR1 ∶ IR2 ∶ IR3 = R1 ∶ R2 ∶ R3, P1 ∶ P2 ∶ P3 = i2r1 ∶ i2r2 ∶ i2r3 = R1 ∶ R2 ∶ R3 characteristics of the series circuit
The law of voltage in series circuit and parallel circuit and another explanation
Why is there a voltage in a series circuit
1. The voltage at both ends of all components in parallel circuit is the same, u = U1 = U2 = U3 =... UN
2. The total voltage u at both ends of the series circuit is equal to the sum of the voltages of each component in the series circuit, that is, u = U1 + U2 + U3 +... UN. The current flowing through each component in the series circuit is the same, so the voltage drop at both ends of the component with high resistance is also greater. For example, suppose there are 10 components in the circuit, and each component is connected end to end, which is R1, R2, r3.r10 in turn. It is known that the resistance value of R2 is greater than R7, If R1 = R2 = R3 =. R10, U1 = U2 = U3 =... UN, then u is always U1 + U2 + U3 +... UN
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