For the circuit shown in below Figure, determine (a) the battery voltage V. (b) the
total resistance of the circuit, and (c) the values of resistance of resistors R1, R2
and R3, given that the p.di's across Ri, R2 and R3 are 5 V, 2 V and 6 V
respectively.
RA
R3
R2
V
V2
V
4 A
tv--
V
Answers
Answer:
In the circuit diagram given below, find:
(A) total resistance of the circuit,
(B) total current flowing in the circuit, and
(C) the potential difference across R
1
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ANSWER
When 8 and 12 are in parallel
and 7.2 is in series with them
Net Resistance
10
7.2
+
12+8
8×12
=
10
72
+
20
96
=
10
72
+
10
48
=
10
120
=12Ω
Total current =
netR
V
=
12
6
=0.5Ω
Voltage across R
1
=iR
1
=0.5×7.2
=3.6
solution
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