The document explains the concepts of series and parallel resistor connections in circuits. In a series connection, resistors are aligned end-to-end and their total resistance is the sum of individual resistances, while in a parallel connection, resistors are connected side-by-side and the total resistance can be calculated using specific formulas, notably that it is always less than the smallest resistor in parallel. The document provides formulas for calculating total resistance for both configurations.

1. RESISTORS CONNECTION
STE
ELECTRONICS

2. Rt
SERIES/PARALLEL
COMBINATION
SERIES
PARALLEL
TERMS

3. SERIES CONNECTION
 In a series circuit, all resistors are
connected end-to-end to form a single
path for current flow.
 Resistors are said to be connected in
series when they are chained together
in a single line resulting in a common
current flowing through them

4. RESISTORS IN

5. HOW TO CALCULATE OVERALL
RESISTANCE IN SERIES
CONNECTION?
To calculate the total resistance of resistors
connected in series, simply add the individual
resistances.
Formula:
Rt = R1 + R2 + R3 + R4…..

6. PARALLEL CONNECTION
 In a parallel circuit, resistors are
connected across each other
(side by side)
 Resistors are said to be connected
together in parallel when both of their
terminals are respectively connected to
each terminal of the other resistor

7. RESISTORS IN PARALLEL

8. Various Parallel Resistor
Connections

9. HOW TO CALCULATE OVERALL
RESISTANCE IN PARALLEL
CONNECTION?
To calculate the total resistance of resistors
connected in parallel, simply use this formula.
Formula 1:
This method of reciprocal calculation can be used
for calculating any number of individual resistances
connected together within a single parallel network.

10. HOW TO CALCULATE OVERALL
RESISTANCE IN PARALLEL
CONNECTION?
If however, there are only two individual resistors in
parallel then we can use a much simplier and quicker
formula to find RT.
Formula 2 :

11.  One important point to remember about
resistors in parallel, is that the total circuit
resistance ( RT ) of any two resistors
connected together in parallel will always be
LESS than the value of the smallest resistor in
that combination.

12. HOW TO CALCULATE OVERALL
RESISTANCE IN PARALLEL
CONNECTION?
Also, in the case of 2 or more Resistors that has
equal values the total resistance of the network will be
exactly half the value of one of the resistors, R/2.
Formula 3: Rt = Value of Resistor
Number of Resistors in the circuit

13. SERIES/PARALLEL COMBINATION
Rt =