Answer: The lamp needs two connections to the power source: one through which it receives charge and the other through which it returns that charge to the power source.
Explanation:Also, no current will flow because by using only one prong, creates an open circuit and thus the lamp cannot glow not even half of its brightness.
Answer:
No it wont glow at all not even a bit!
Explanation:
Electricity is the flow current and current can only flow if the path is complete like a circle where you start from a point and return to the same point.
We need to plug both prongs of the power cord into the outlet so that current can flow from one prong to the second thus completing the circuit.
Why wouldn't it at least glow at half of its brightness ?
It won't glow even a little bit because there is no flow of current. Current only flows when it sees least resistant in its path and in this case current sees infinite resistance since the path is broken so we have to plug the both prongs to let the current flow.
