Question

Резистори з опорами 12 Ом, 20 Ом 1 30 Ом з'єднані паралельно а пiд'єднані до джерела постійної напруги 60 В. Якою є потуж- ність струму в усьому колі? ​

Answer 1

Відповідь:

надіюсь що то правильно))

Пояснення:

Answer 2

Calculation of Total Resistance:

To determine the total resistance in a parallel circuit, we can use the formula:

1/R_total = 1/R1 + 1/R2 + 1/R3 + ...

In this case, we have resistors with resistances of 12 Ω, 20 Ω, and 30 Ω connected in parallel. Let's calculate the total resistance:

1/R_total = 1/12 + 1/20 + 1/30

To simplify the calculation, we can find the least common multiple (LCM) of the denominators:

LCM(12, 20, 30) = 60

Now we can rewrite the equation:

1/R_total = (5/60) + (3/60) + (2/60)

1/R_total = 10/60

1/R_total = 1/6

Therefore, the total resistance (R_total) is 6 Ω.

Calculation of Current:

To calculate the current flowing through the circuit, we can use Ohm's Law:

I = V/R

Where: - I is the current (in amperes) - V is the voltage (in volts) - R is the resistance (in ohms)

In this case, the voltage is given as 60 V and the total resistance is 6 Ω. Let's calculate the current:

I = 60 V / 6 Ω

I = 10 A

Therefore, the current flowing through the entire circuit is 10 amperes.

Calculation of Power:

To calculate the power in the circuit, we can use the formula:

P = I * V

Where: - P is the power (in watts) - I is the current (in amperes) - V is the voltage (in volts)

In this case, the current is 10 A and the voltage is 60 V. Let's calculate the power:

P = 10 A * 60 V

P = 600 W

Therefore, the power of the current in the entire circuit is 600 watts.