Resistors use various color bands to specify their values. These color bands are used instead of numbers due to their simplicity and cost effective printing on tiny components.
The following table lists the various color codes
Showing posts with label Resistance. Show all posts
Showing posts with label Resistance. Show all posts
Resistor Color Coding
Labels:
circuit elements,
circuits,
network elements,
network theory,
Resistance
Resistors in series
When resistors are connected in series, the amount of the current passing through
all the resistors will be same but the voltage drops across the resistors may vary. For
series connected resistors their resistance adds up. Their equivalent
resistance is equal to the sum of all the resistors in series. Thus for a
series connection, equivalent resistance increases with increase in number of
resistors.
Consider
the following circuit of three resistors
Resistors in parallel
When resistors are connected in parallel, the amount of the voltage
drop across all the resistors is same but the current passing though the
resistors varies depending on their resistance values. For parallel connected
resistors the equivalent resistance is equal to inverse of the sum of inverse
resistances in parallel. Thus for a parallel connection of resistors,
equivalent resistance decreases with increase in number of resistors in
parallel.
Consider
the following
Labels:
circuits,
electrical,
electrical circuits,
equivalent circuit,
equivalent resistance,
network theory,
Resistance
Electrical Resistance
The property of a
material that reduces the flow of current through it is called electrical resistance. Every material will have some
amount of resistance except super conductors which have zero resistance. The
materials which have very low resistance are called conductors. The inverse of resistance is called conductance. Resistors are used to control the amount of current passing through conductors. But they dissipate the energy in
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