select the correct answer.\nin a series circuit, what effect will adding more resistors to the circuit…
select the correct answer.\nin a series circuit, what effect will adding more resistors to the circuit have?\na. it will decrease the equivalent resistance which will decrease the total current.\nb. it will increase the equivalent resistance which will decrease the total current.\nc. it will increase the equivalent resistance which will increase the total current.\nd. it will decrease the equivalent resistance which will increase the total current.\ne. the number of resistors will not affect the circuit in anyway.
Answer
Explanation:
Step1: Recall series - resistance formula
In a series circuit, the equivalent resistance $R_{eq}=\sum_{i = 1}^{n}R_i$. As we add more resistors ($n$ increases), $R_{eq}$ increases.
Step2: Apply Ohm's law
Ohm's law is $I=\frac{V}{R_{eq}}$, where $V$ is the voltage (assumed constant in this case). Since $R_{eq}$ increases and $V$ is constant, the total current $I$ will decrease.
Answer:
B. It will increase the equivalent resistance which will decrease the total current.