FINALS - ELETB1A

very desperate attempt to pass the day before.

Inductance

ability to store energy in a magnetic field

Unit for measuring inductance

H for Henry

L represents

Inductance

symbol for inductance:

__nnnn__

formula for conductance in inductors in series:

LT = L1 + L2 + L3...

formula for conductance in inductors in parallel:

1/LT = 1/L1 + 1/L2 + 1/L3...

Time Constant can be determined by :

T (measured in secs) = L (inductance) /R

Five time constants required to

fully build up or collapse the magnetic field of an inductor

Inductor types:

variable and fixed

Value of a capacitor is always given in:

micro or pico farads

basic unit of capacitance

farad

base to milli

x 1000 (other way around = /1000)

base to micro (backwards n)

x 1,000,000 (other way around =/1,000,000)
10 to -6 power

base to nano (n)

10 to -9th power

base to pico (p)

10 to -12th power

larger plate area increases the

capacitance

larger capacitor stores more

charge for the same voltage

thinner dielectric increases

the capacitance

types of capacitors

plastic, ceramic. and paper

capacitor consists of

two conductors separated by a dielectric (insulator).

capacitors store

energy in the electric field

voltage is equal through a

parallel circuit

resistance formula for parallel circuit

1/RT = 1/R1 + 1/R2 + 1/R3

current is equal through

a series
circuit

make sure you check ur answers at least ONCE FULLY THROUGH

make sure you check ur answers at least ONCE FULLY THROUGH