BASIC ELECTRONICS - OD1633 - LESSON 1/TASK 2
Where:
Req = equivalent parallel resistance
R = ohmic value of one resistor
N = number of resistors
This equation is valid for any number of parallel resistors of equal value.
Example: Four 40 Ohm resistors are connected in parallel.
What is their
equivalent resistance?
Given:
R1 = R2 = R3 = R4
R1 = 40 Ohms
Figure 50 shows two resistors of unequal value in parallel. Since the total
current is shown, the equivalent resistance can be calculated.
FIGURE 50.
EXAMPLE OF CIRCUIT WITH UNEQUAL PARALLEL RESISTORS.
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