* Example, consider a series circuit which
consists of three resistors with resistance
5ohm ,10ohm5ohm
respectively with a
15 v battery. Find the equivalent resis
tance of the circuit,
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* Example, consider a series circuit which
consists of three resistors with resistance
5ohm ,10ohm5ohm
respectively with a
15 v battery. Find the equivalent resis
tance of the circuit,
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Answer:
Answer
In this circuit, 8Ω and 12Ω are connected in parallel, and this parallel resistors are connected in series with 7.2Ω.
8Ω and 12Ω are in parallel, their equivalent resistance:
R
1
=
8
1
+
12
1
=
24
5
R=4.8Ω
Now, Equivalent resistance (series connection) of the circuit =4.8+7.2=12Ω
V=IR
eq
I=
R
eq
V
=
12
6
=0.5A
Potential Difference across 7.2Ω resistor =I×R=0.5×7.2=3.6V