Question

The two resistors shown below are connected to identical power sources. Resistor 1 has a resistance of 30 02, and resistor 2 has a resistance of 45 0.

The current in resistor 1 is 2 A.
1₁=2A
O 1.3 A
What is the current in resistor 2?
O 3.0 A
O 1.0 A
30 f2 = R₁
O 1.5 A
45 f1 = R₂

Answer 1

≈ 1,3 A

Step-by-step explanation:

A series connection is shown in the photo

Since we know that U1 = U2 = U, we can find the voltage of the 1st resistor:

U1 = I1 × R1

U1 = 2 × 30 = 60V

The voltage of both resistors are the same, so U1 = U2 = 60V

Now we can find the current in the 2nd resistor:

I2 = U2/R2

I2 = 60/45 ≈ 1,3 A