Question

Каким будет напряжение в цепи и как оно распределится на отдельных участках, если R1=5ом,R2=12 Ом, R3=3 Ом, а ток в первом сопротивлении I=5 А. Определить общее сопротивление цепи, ток и напряжение на каждом сопротивлении

Answer 1

Решение находится во вложении

 

Answer 2

Calculation of Total Resistance:

To determine the total resistance of the circuit, we need to calculate the equivalent resistance (R_eq) by adding the individual resistances (R1, R2, and R3) in series.

The given values are: - R1 = 5 Ω - R2 = 12 Ω - R3 = 3 Ω

To find the total resistance, we add the individual resistances: R_eq = R1 + R2 + R3

Substituting the given values: R_eq = 5 Ω + 12 Ω + 3 Ω

Calculating the sum: R_eq = 20 Ω

Therefore, the total resistance of the circuit is 20 Ω.

Calculation of Current:

The current flowing through the circuit is given as I = 5 A.

Therefore, the current flowing through each resistor in the circuit is also 5 A.

Calculation of Voltage across Each Resistor:

To calculate the voltage across each resistor, we can use Ohm's Law, which states that V = I * R, where V is the voltage, I is the current, and R is the resistance.

For R1: V1 = I * R1

Substituting the given values: V1 = 5 A * 5 Ω

Calculating the voltage: V1 = 25 V

For R2: V2 = I * R2

Substituting the given values: V2 = 5 A * 12 Ω

Calculating the voltage: V2 = 60 V

For R3: V3 = I * R3

Substituting the given values: V3 = 5 A * 3 Ω

Calculating the voltage: V3 = 15 V

Therefore, the voltage across each resistor is as follows: - Voltage across R1: 25 V - Voltage across R2: 60 V - Voltage across R3: 15 V

Summary:

In summary, the characteristics of the circuit are as follows: - Total resistance (R_eq): 20 Ω - Current (I) flowing through the circuit: 5 A - Voltage across each resistor: - Voltage across R1: 25 V - Voltage across R2: 60 V - Voltage across R3: 15 V