Question

В схеме R1 = 10 Ом, R2 = 5 Ом, R3 = 10 Ом, I3= 2A Найти напряжение источника U

Answer 1

U=I3×(R1+R2/(R2+R3))= 2×(10+5/(5+10))=2

Answer 2

Calculation of Source Voltage U

To find the source voltage U in the given circuit, we can use the following formula:

U = I3 * (R2 + R3)

Where: - I3 = 2A (given current) - R2 = 5Ω - R3 = 10Ω

Substitute the given values into the formula: U = 2A * (5Ω + 10Ω) U = 2A * 15Ω U = 30V

Therefore, the source voltage U is 30V.