Question

В цепь, подключенную к источнику тока с ЭДС 12В и внутренним сопротивлением 1 ОМ, включены последовательно 3 проводника с споротивлениями 5,6 и 7 Ом. Определите напряжение на каждом проводнике

Answer 1

Разве напряжение изменится?

Answer 2

Calculating Voltage in a Circuit with Multiple Resistors

To determine the voltage across each resistor in the circuit, we can use the principles of Ohm's law and the formula for calculating voltage in a series circuit.

Given Parameters: - EMF (Electromotive Force): 12V - Internal Resistance: 1Ω - Resistances of the three conductors: 5Ω, 6Ω, and 7Ω

Calculation Steps:

1. Total Resistance (R_total) in the Circuit: - The total resistance in a series circuit is the sum of all individual resistances. - R_total = Internal Resistance + Sum of the three conductor resistances - R_total = 1Ω + 5Ω + 6Ω + 7Ω - R_total = 19Ω

2. Current (I) in the Circuit: - Using Ohm's law (V = IR), where V is the voltage and R is the resistance, we can calculate the current flowing in the circuit. - I = EMF / R_total - I = 12V / 19Ω - I ≈ 0.6316A

3. Voltage Drop Across Each Resistor: - The voltage drop across each resistor can be calculated using Ohm's law (V = IR), where I is the current and R is the resistance. - Voltage across the 5Ω resistor: V_5Ω = I * 5Ω - Voltage across the 6Ω resistor: V_6Ω = I * 6Ω - Voltage across the 7Ω resistor: V_7Ω = I * 7Ω

Results:

- Voltage across the 5Ω resistor: V_5Ω ≈ 3.158V - Voltage across the 6Ω resistor: V_6Ω ≈ 3.789V - Voltage across the 7Ω resistor: V_7Ω ≈ 4.421V

Therefore, the voltage across the 5Ω, 6Ω, and 7Ω resistors in the circuit would be approximately 3.158V, 3.789V, and 4.421V, respectively.