What is the main difference in the wiring of an electric bulb and a socket for using an electric iron in a domestic electric circuit? What is the reason for this difference?

Which of the following circuits will still be dangerous even if the fuse blows off and electric iron stops working during a short circuit?

An electric kettle rated as 1200 W at 220 V and a toaster rated at 1000 W at 220 V are both connected in parallel to a source of 220 V. If the fuse connected to the source blows when the current exceeds 9.0 A, can both appliances be used at the same time? illustrate your answer with calculations.

Explain why, it is more dangerous to touch the live wire of a mains supply rather than the neutral wire.

Why is it safe for birds to sit on naked power lines fixed atop tall electric poles?