Answer:
Light bulb - B
Battery - A
Explanation:
The electric circuit consists of a battery, an electric bulb, a switch etc. A battery act as a source of electric power. Its positive terminal is called cathode and its negative terminal is called as anode.
(28) In the given figure, B represents the light bulb.
(29) In the given figure, A represents the battery. There are some rechargeable batteries like lithium batteries, Nickel cadmium etc.
