Faraday's Law (Maths) & Lenz's Law (Physical) Follow link for a print out of the class work sheet.
HSC can understand moving conductors in magnetic field by considering that this creates a conventional current as protons are moved and an opposing current as electrons are moved. This forces the charges appart creating a battery.
This is a good animated summary of the topic.
Wednesday, February 25, 2009
Thursday, February 19, 2009
Lenz'z Law and more
Complete to Q 23 P 128, Summarize Chapter 7
Lenz's Law current is generated make an pole that resists motion.
Push N to N, Pul N to S
The fields at the same so in a transformer more turns x less current, of less turn x more current. More turns less current, but more volts P=VxI
Eddie current - breaking . A moving conductor in a field will make N and S in an orientation that resists the movement - ie opposing is feed in repelling , and opposites are feed out
The breaking force is turned into electrical energy.
Make a battery by moving a conductor in an Magnetic field. The electrons and Protons are pushed in separate directions making a battery at the ends of the wire.
Lenz's Law current is generated make an pole that resists motion.
Push N to N, Pul N to S
The fields at the same so in a transformer more turns x less current, of less turn x more current. More turns less current, but more volts P=VxI
Eddie current - breaking . A moving conductor in a field will make N and S in an orientation that resists the movement - ie opposing is feed in repelling , and opposites are feed out
The breaking force is turned into electrical energy.
Make a battery by moving a conductor in an Magnetic field. The electrons and Protons are pushed in separate directions making a battery at the ends of the wire.
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About Me
- drhill
- I come from a Science family: My father Geoffrey Hill was Australia's first computer programmer on CSIRAC the fourth computer in the world. He is credited with invention of Computer music and the development of “Interprogram” a language before Basic. My PhD is in Atomic and Molecular Physics. I have researched the activated oxygen layer above the ozone layer, and 'Assigned' the world's smallest molecule. At the University of Toronto I researched high power UV lasers. I have specialized in automation in fibre optics. This developed into research in Machine Intellect and Robots. I have enjoyed work as an Explainer with Questacon and my time as a part-time soldier. I currently teach High School Science at Epping Boys’ High.