R1=36 Ом U1=9 В R2=64 Ом R3=120 Ом U2=? U3=?

Предыдущий
вопрос Следующий
вопрос

To find the voltage (U2) across resistor R2 and the voltage (U3) across resistor R3, we can use the formula for voltage in a series circuit:

U = I * R

We first need to find the total resistance in the circuit (RT):

RT = R1 + R2 + R3
RT = 36 + 64 + 120
RT = 220 Ом

Next, we can find the total current in the circuit (I):

U1 = I RT
9 = I 220
I = 9 / 220
I ≈ 0.0409 A

Now we can find the voltage across resistor R2 (U2):

U2 = I R2
U2 = 0.0409 64
U2 ≈ 2.62 В

Finally, we can find the voltage across resistor R3 (U3):

U3 = I R3
U3 = 0.0409 120
U3 ≈ 4.91 В

Therefore, U2 ≈ 2.62 V and U3 ≈ 4.91 V.