LC circuit

[mahlon]

Hi,
Iam studying resonance. I am attempting to connect a 2.2uF 250V non-polar capacitor in parallel with a 4.6H inductor. I am going to connect the circuit to a socket supplying 240V 50Hz ac. Now my question to you is, will this circuit short circuit if i don't include a resistor. From what i was told when it comes to mains voltage a resistor must be connected to act as a load otherwise it will shortcircuit since capacitors and inductors don't dissipate power. I remember once i connected a straight wire between the live and neutral wires of the socket and it short circuited. So i was wondering if this will happen to the LC circuit without the resistor.Thanx.

[arran]

At low frequencies the inductor will act as a short circuit, so a parallel combination of a C and an L will short the mains supply yes.

Connecting components across the mains is a very dangerous and rather stupid thing to do. If you want to study resonance please buy a function generator, this will be a safe way for you to study resonance.

If you start connecting components across the mains supply one of several things may happen.

1) You electrocute yourself
2) The capacitor blows up
3) The inductor catches fire

PLEASE DON'T CONNECT COMPONENTS ACROSS THE MAINS SUPPLY IT'S VERY DANGEROUS