BASIC ELECTRONICS - OD1633 - LESSON 1/TASK 2
FIGURE 44.
EXAMPLE PROBLEM PARALLEL CIRCUIT.
Solution:
E = IR
ER2 = .0045 amps x 30,000 Ohms
ER2 = 135 volts
Since the source voltage is equal to the voltage of a branch:
Es = ER2
Es = 135 volts
To simplify the math operation, the values can be expressed in powers of ten
as follows:
30,000 Ohms = 30 x 103 Ohms
4.5 mA = 4.5 x 10-3 amps
ER2 = (4.5 x 30 x 10-3 x 103) volts
(10-3 x 103 = 10-3 + 3 = 100 = 1)
ER2 = (4.5 x 30 x 1) volts
ER2 = 135 volts
Es = R2
Es = 135 volts
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