The bulbs

The bulbs are connected serially to two bulbs and one resistor. Each bulb has a resistivity of 100 ohms, and the resistor has a resistivity of 60 ohms.
The voltage source in the circuit is 24 volts.

Do you know what voltage to measure on individual appliances?

Correct answer:

U₁ =  9.2308 V
U₂ =  9.2308 V
U₃ =  5.5385 V

Step-by-step explanation:

$$\begin{gathered} U=24\text{V} \\ {R}_1=100\Omega \\ {R}_2=100\Omega \\ {R}_3=60\Omega \\ R=R_1+R_2+R_3=100+100+60=260\Omega \\ I=U/R=24/260=\frac{6}{65}\doteq 0.0923\text{A} \\ {U}_1=R_1\cdot I=100\cdot 0.0923=9.2308\text{V} \end{gathered}$$

$U_2=R_2\cdot I=100\cdot 0.0923=9.2308\text{V}$

$U_3=R_3\cdot I=60\cdot 0.0923=5.5385\text{V}$

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