How to calculate the commutation resistance in physical series circuit? What is the formula? In a similar series circuit, U1 measures the voltage of R1, U2 measures the voltage of r-slip.ammeter A1 measures the current in the circuit. R-slip is "100 Ω, 1a." U1 has a small range and U2 has a large range. The power supply voltage is constant 16 V, R1 is 10 Ω. Now R0 is used to replace R1, which requires the ammeter to reach their full scale respectively. Calculate the resistance value of RO? (this is the formula for solving R0 in similar problems of changing resistance.) In the circuit shown in the figure (that is, a series circuit, U1 measures R1, U2 measures r sliding), the voltmeter V1 has a small range, V2 has a large range, the power supply voltage remains unchanged at 16V, and the sliding rheostat is marked with "100 Ω, 1A". The resistance of R1 is 10 ohm. After closing the electric building s, the voltmeter V1 is 2V. Please replace R1 with a fixed value resistor, and move r slider p to make all meters reach their maximum values, and the circuit works normally. How to find the consistent constant resistance? (2) If the above conditions are met, the rheostat R2 is connected into the resistance range of the circuit.

How to calculate the commutation resistance in physical series circuit? What is the formula? In a similar series circuit, U1 measures the voltage of R1, U2 measures the voltage of r-slip.ammeter A1 measures the current in the circuit. R-slip is "100 Ω, 1a." U1 has a small range and U2 has a large range. The power supply voltage is constant 16 V, R1 is 10 Ω. Now R0 is used to replace R1, which requires the ammeter to reach their full scale respectively. Calculate the resistance value of RO? (this is the formula for solving R0 in similar problems of changing resistance.) In the circuit shown in the figure (that is, a series circuit, U1 measures R1, U2 measures r sliding), the voltmeter V1 has a small range, V2 has a large range, the power supply voltage remains unchanged at 16V, and the sliding rheostat is marked with "100 Ω, 1A". The resistance of R1 is 10 ohm. After closing the electric building s, the voltmeter V1 is 2V. Please replace R1 with a fixed value resistor, and move r slider p to make all meters reach their maximum values, and the circuit works normally. How to find the consistent constant resistance? (2) If the above conditions are met, the rheostat R2 is connected into the resistance range of the circuit.

It is impossible for a meter to reach full scale
3V + 15V = 18V greater than 16V
U1 / R1 = U2 / r2 less than 1A
U1/U2=R1/R2=10/R2
U1 3V
U2 15V
U1+U2=18V

What is the resistance formula in series circuit? What is the resistance formula in parallel circuit?

Series resistance formula
Total resistance R = R1 + R2 + R3 +
The total resistance of a series circuit is equal to the sum of the resistances
Parallel resistance formula
Calculation of resistance value
1 / R total = 1 / R1 + 1 / r2 + 1 / R3 +. + 1 / RN
That is, the reciprocal of the total resistance is equal to the sum of the reciprocal of the partial resistance
For N equal resistors in series and parallel, the formula is simplified as R series = NR and R union = R / n

Why is the formula of electric work different from that of pure resistance

Pure resistance P = UI = u * U / r = I * I / R
Impure resistance R is not equal to U / I
Electric power P = UI
Thermal power P = I * I / R
In a non pure resistance circuit, part of the electric power is converted into internal energy and other forms of energy,
Only w = uit = Pt can be used for electric power calculation. Only p = UI = w / T can be used for electric power calculation. Q = I ^ 2rt can be used for electric heating