In the series circuit, if one bulb is removed (there are multiple bulbs), will the total current change and the total voltage change?

In the series circuit, if one bulb is removed (there are multiple bulbs), will the total current change and the total voltage change?


According to Ohm's law, the current in a conductor is directly proportional to the voltage at both ends of the conductor and inversely proportional to the resistance of the conductor. The formula is (I = u / R). According to your understanding of the problem, if you remove a light bulb (the resistance decreases), the current will increase when the voltage is constant. That is, the voltage will remain unchanged and the electric current will increase. If you require constant current, the current will remain unchanged and the voltage will decrease



Under what circumstances can a bulb, ammeter and voltmeter be regarded as a wire in a circuit?


Short circuit
Short circuit is equivalent to connecting two ends of components with wires, which can be regarded as wires



In a series circuit, if the voltage of two small bulbs is different, do they flow the same current? If they are different, why?


The current of a series circuit is equal everywhere



A copper wire and a nickel chromium alloy wire are of the same length and thickness. If they are connected in series in the circuit, which wire has the higher voltage at both ends? Which wire has the most current? Why?


A: because the conductor resistance depends on the length, cross-sectional area and material of the conductor, and the length and cross-sectional area of the two conductors are equal, it can be seen that the resistance of nickel chromium alloy wire is large; when copper wire and nickel chromium alloy wire are connected in series, the current through them is the same, and the partial voltage with large resistance is large, so the voltage at both ends of nickel chromium alloy wire is large