Question

2 A balloon becomes negatively charged when rubbed
against someone's sleeve.
Explain:
a how it becomes charged;
b why it will then stick to a wall.​

Answer 1

Answer:

because if an object is rubbed on a object it conducts a negative charge

and the it will attract on things or walls bcoz since it is negatively charged and the wall is positive so thus both will attract each other i.e. postive and negative charge attract each other