Question

module 3 (10pts)
what is the total resistance or equivalent resistance of this circuit? 0.25 o
which statement is true about the voltage in this parallel circuit?
it is higher within the first branch
it is lowest within the last branch
it is divided among the branches
the voltage drop across each branch is equal to the voltage of the power source
what is the voltage drop across r1?
what is the voltage drop across r2?
what is the current drawn by r1?
what is the current drawn by r2?
what is the current drawn by r3?
what is the total current drawn by this circuit?

Explanation:

Step1: Aplicar la ley de Ohm para calcular la corriente en \( R_3 \)

La ley de Ohm es \( I=\frac{V}{R} \). En un circuito en paralelo, la tensión en cada resistor es la misma que la del generador. Aquí, \( V = 9\ V \) y \( R_3=1\ k\Omega=1000\ \Omega \).
$$I_{R3}=\frac{V}{R_3}$$

Step2: Sustituir los valores de \( V \) y \( R_3 \) en la fórmula

Sustituir \( V = 9\ V \) y \( R_3 = 1000\ \Omega \) en la fórmula \( I_{R3}=\frac{V}{R_3} \).
$$I_{R3}=\frac{9\ V}{1000\ \Omega}=9\times10^{-3}\ A = 9\ mA$$

Answer:

\( 9\ mA \)