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Over the past few weeks in my HS physics classes I've come up with several questions that my teacher can't answer (because they are a maths teacher not a physics teacher :uhh: ). I've tried to find the answers on the internet but can get no straight answers, I hope you guys can help me.
1. When a current flows through a conductor is ALL the potential energy released to the conductor, ie. do the charges return to the opposite terminal without any energy. If a charge moved between two points of varying electrical potential in empty space, how and to what is the potential energy transferred?
2. A current carrying conductor has a magnetic and electric field around it, do these fields require energy in order to exist. Is energy lost in a conductor creating these fields? Why is it that a charged particle has to be moving before it can have a magnetic field?
3. A solenoid with AC running through it acts just like any other device, yes? It is converting electrical energy into heat due to resistance in the conductor. When a second coil is brought near you have a simple transformer, what effect, if any, does the second coil have on the current in the first coil? Now that electrical energy is being induced in the second coil does that mean that less energy is being lost as heat etc in the first? If not then how is energy being conserved? Will a transformer consume the same amount of power when the second coil is present (or simply a complete circuit) as to when the second coil is not present (or is an incomplete circuit)?
I had a couple more questions but I will save them and see if I can understand your answers to these ones first. Any help is much appreciated
1. When a current flows through a conductor is ALL the potential energy released to the conductor, ie. do the charges return to the opposite terminal without any energy. If a charge moved between two points of varying electrical potential in empty space, how and to what is the potential energy transferred?
2. A current carrying conductor has a magnetic and electric field around it, do these fields require energy in order to exist. Is energy lost in a conductor creating these fields? Why is it that a charged particle has to be moving before it can have a magnetic field?
3. A solenoid with AC running through it acts just like any other device, yes? It is converting electrical energy into heat due to resistance in the conductor. When a second coil is brought near you have a simple transformer, what effect, if any, does the second coil have on the current in the first coil? Now that electrical energy is being induced in the second coil does that mean that less energy is being lost as heat etc in the first? If not then how is energy being conserved? Will a transformer consume the same amount of power when the second coil is present (or simply a complete circuit) as to when the second coil is not present (or is an incomplete circuit)?
I had a couple more questions but I will save them and see if I can understand your answers to these ones first. Any help is much appreciated