[amp_mcq option1=”One – a negative terminal” option2=”Two – a negative terminal and a positive terminal” option3=”Three – negative, positive and neutral terminals” option4=”Four – two negative and two positive E. None of the above” correct=”option2″]
The correct answer is B. Two – a negative terminal and a positive terminal.
Current flow is the movement of electrons from a negative terminal to a positive terminal. Without a negative terminal, there would be no electrons to flow, and without a positive terminal, there would be nowhere for the electrons to flow to.
Option A is incorrect because a single negative terminal is not enough to create a current flow. Option C is incorrect because a negative, positive, and neutral terminal are not necessary for current flow. Option D is incorrect because two negative terminals and two positive terminals would not create a current flow. Option E is incorrect because there is no other option that is correct.