Heat is created. Without the proper protection of over current devices on the circuit this heat can reach temperatures high enough to melt the insulation on the wire. High voltage on a very small wire will vaporize it and all that will be left is copper particles.
Heat, which will eventually burn away the insulation on the wire and could potentially start a fire.
It is called a short circuit when more current flows than what the load demands.
none. no current means no energy.
Yes - at least, it is possible to pass more current through the thicker wire. How much current actually flows can also depend on other factors.
This would not be a hypothesis, but an explanation. A fuse is a piece of wire with a low melting point which melts if too much current flows in the circuit. It is designed to break before the rest of the circuit is damaged.
The (only) protection device which works like that is a fuse. It is simply a short length of metal which melts when too much current flows through it.
electric current
A circuit breaker is a device used to open a circuit if too much current flows through it.
No current flows when the the voltage is zero.
It is called a short circuit when more current flows than what the load demands.
none. no current means no energy.
Overcurrent, sometimes called shortcircuit.
same current flow in each bulb
An electric shock happens when an electric current flows through the body. It causes muscular spasm and associated pain. The severity of the shock depends on how much current there is. Currents above about 35 mA can be fatal if they reach the most sensitive muscles like the heart.
Current in amperes is coulombs per second, so 2 coulombs per second is 2 amperes.
the wire will burn red hot or desinigrate instantly
3 Ampere
Yes - at least, it is possible to pass more current through the thicker wire. How much current actually flows can also depend on other factors.