Question

10. For a bulb to glow, it must be connected to a battery. Why?

Answer 1

Answer:

ya in case of a circuit but is is not necessary of a battery .

Explanation:

reason there is another way to glow bulb that is through . Tesla coil

in which the bulb can glow wireless

Answer 2

Answer:

for glowing of bulb it must connect to the battery because battery provide current to the bulb to glow