Question

Tell me the answer please​

Answer 1

For the current to flow,there must be a complete or continuous circuit.The circuit in the image is not complete because of "open switch".By closing the switch the bulb will glow.

I hope this helps you!

Answer 2

because,switch is off so the bulb is not glowing
and circuit is open and in your circuit battery doesn't have negative(-) point wait drawing a new circuit,,,,,,,hope it helps (怒)