EECE 1311 Electric Circuits Dr. AHM Zahirul Alam 1
Dr. AHM Zahirul Alam
ECE Dept., IIUM
EECE 1311
Electric Circuits
Chapter 1: Basic Concepts
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EECE 1311 ELECTRIC CIRCUITS
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The charge e on one electron is negative and equal in magnitude
to 1.602 10-19 C which is called as electronic charge. The
charges that occur in nature are integral multiples of the
electronic charge.
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Voltage is the energy required to move a unit charge through an element,
measured in volts (V).
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2 4 6 8 100
8
16
24
32
40
48
q(C
)
t (s)
2 4 6 8 100
10
20
30
40
50
V(V
)
t (s)
•The charge flowing through a wire and voltage across the wire are shown in Fig. 1 (a).
Sketch the corresponding current with time, the power absorbed by the wire with time, and
find the energy absorbed by the device from 0 to 10s.
Fig. 1(a)