Question

Considered the following unlabelled diagram of a flashlight:

Which of the parts is responsible for controlling the current flow in the circuit?

• A. $\text{A}$
• B. $\text{B}$
• C. $\text{C}$
• D. $\text{D}$

Answer 1

The correct option is B $\text{B}$

The parts of the given flashlight are:
Out of them, the switch is used to on/off the electric circuit thereby allowing/not allowing the current to flow through the bulb. So, the part $\text{B}$ is the one responsible for controlling the current flow in the circuit.