- Inductance:
Three types are
- self inductance
- mutual induction
- dot notation
SELF INDUCTION:[L]
- It is stores energy in a magnetic flux field.
VL=L di/dt ,where is an inductor.
L=VL/di/dt Volts-sec/amps[henry's]
MUTUAL INDUCTANCE:[M]
- we have applied to current one coil change flux in the first coil links the adjacent coil linking changing flux induced a voltage in the second coil as per Faraday's law.[ unit is hentry (H) ]
DOT NOTATION:
- Dot on the coils indicate the polarity of voltage induced in the coils.