Question

() Why is it more dangerous to be electrocuted when you are wet than when you are dry? (5) Why does rubbing a balloon on your head allow you to then stick it to a wall?

Answer 1

SOLUTION:

PART (4).

It is more dangerous to be electrocuted when you are wet than when you are dry. This is because, water is more conductive. Hence, wet body will have less resistance than dry body, which will cause more current to flow through wet body. More current, more dangerous.

PART (5):

Rubbing balloon will on your head or hair will cause some charge exchange, electron exchange to be specific. This process is called electrification by friction.

The balloon will hence get charged and it will induce some opposite charges in the wall when the balloon is brought closer to the wall. We know that opposite charges attract, hence balloon will stick to the wall.