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ELECTRONIC DEVICES (INDUCTOR :check: (Type of inductor (Fixed (Ferrite…
ELECTRONIC DEVICES
INDUCTOR :check:
FARADAY'S LAW
- an induced e.m.f is setup whenever the magnetic field linking that circuit changes.
- the magnitude of the induced e.m.f in any circuit is proportional to the rate of change of the magnetic flux linking the circuit. e=-N(d°\dt) Where:
- N is the number of turns of the coil
- d° is the change of flux in weber,Wb
- dt is the time taken for the flux to change in seconds.
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Also called a choke, is another passive type electrical components designed to take advantage of this relationship by producing a much stronger magnetic field than one that would be produced by a simple coil.
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CAPACITOR :check:
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Type of capacitors
Fixed
Unpolarized
- Paper
- Film
- Mica
- Ceramic
- Air gap
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CAPACITANCE
Capacitor has capacitance of 1 farad when current charging of one ampere flows in one second.this process causing tranferring 1 volt in plates potential
- Defined as amount of charge Q stored in between the two plate or C=Q/V
- Capacitors which obey the equation above is linear capacitors,since the potential differences between the conductive surfaces is linearly related to the charge on the surfaces. thus if we increase the charge on one plate. The charge on the other decrease by the same amount.
Capacitor
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INDUCTANCE
The property of an electric circuit by which an electromotive force is induced in it as the result of changing magnetic flux
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