In physics calculation, the voltage of power supply in series circuit remains unchanged, which means that the voltage is equal everywhere? Is the voltage equal everywhere equal to the supply voltage

In physics calculation, the voltage of power supply in series circuit remains unchanged, which means that the voltage is equal everywhere? Is the voltage equal everywhere equal to the supply voltage

The output voltage is constant every time. The voltage is not equal everywhere,

The three points a, B and C in the uniform electric field form an equilateral triangle with a side length of a, as shown in the figure, and the direction of the field strength is parallel to the paper surface. The kinetic energy of electrons with initial velocity decreases E0 from B to a under the action of the electric field force, and the kinetic energy of protons increases E0 from C to a under the action of the electric field force, so as to calculate the field strength of the uniform electric field

According to the kinetic energy theorem, when the electron from B to a is - Euba = - E0, the potential difference between B and a is UBA = e0e & nbsp; ① when the proton from C to a is EUCA = E0, UCA = e0e & nbsp; ② from ① and ②, it can be seen that the potential of B and C is equal and greater than that of a, that is, φ B = φ C ＞ φ a

The relationship among series parallel current, voltage and resistance

In series circuit, r = R1 + R2 + RN, I = I1 = I2 = in, v = V1 + V2 + VN
In parallel circuit, 1 / r = 1 / R1 + 1 / r2 + 1 / RN, I = I1 + I2 + in, v = V1 = V2 = VN