While trying to understand certain topics of A-Level Chemistry & Physics, one concept proved to be quite the hurdle: entropy. These posts will detail my current understanding of it – if I do make mistakes do leave a comment! Now, let’s jump straight to the question:
Last post of this chapter, & a nice segue to the next…
- Applications of EM Induction
- Eddy currents
…and now we get to the exciting part!
- Explanation on EM Induction
- Lenz’s Law
Before this, we have seen how a current-carrying conductor in a constant magnetic field will experience a force. Now we turn to the opposite of this effect:
- EM Induction
- Magnetic Flux Linkage
- Factors affecting the magnitude of induced e.m.f.
- Faraday’s Law
New chapter! Let’s start off with a very important concept:
- Magnetic Flux
- Φ = BA sin θ
A tough one (but an interesting one!):
- Velocity selection
- Hall voltage
So far we’ve explored forces on permanent magnets & current-carrying conductors. But what about free-moving charged particles?
- Force on a charge moving in a magnetic field
- F = Bqv sin θ
- Determination of v & e/me for electrons
Now that we got the basics down, let’s introduce a new term:
- Magnetic Flux Density
- Measuring magnetic flux density
A new field!
- Magnetic Fields
- Magnetic Field Lines
- Force on a current-carrying conductor in a magnetic field
- F = BIL sin θ
- Force between parallel current-carrying conductors