Question

A voltage of 12 V is applied across a circuit with one 3 0hm resistor in series and three 3 Ohm resistors in parallel. What is the total voltage drop in the first 3 Ohm resistor in the circuit? Select one:a. 3 Volts b. 9 Volts c. 36 Volts d. 6 VoltsThe total current is 3 A.

Answer 1

In order to calculate the voltage drop in a resistor, we can use the formula below:

`V=I\cdot R`

If the current passing through the resistor is 3 A and its resistance is 3 ohms, so the voltage drop is:

`\begin{gathered} V=3\cdot3\\ \\ V=9\text{ Volts} \end{gathered}`

Therefore the correct option is b.