Electric Circuit Analysis: Unit II: Network Reduction and Theorems for dc and ac Circuits
Exercise
Star, delta transformation or t, π transformation | dc and ac Circuits
Electric Circuit Analysis: Unit II: Network Reduction and Theorems for dc and ac Circuits : Exercise
EXERCISE
1.
Calculate the current in the branch BD of the following fig (2.48)
[Ans: 0.461 A]
2.
Find the current I in the fig (2.49).
(Note: Use delta-star
conversion)
[Ans: 0.854 A]
3.
Find the current through AB in the fig below.
[Ans: 0.82 A]
4.
In the circuit shown in the fig, find E1, E2 and I when the power dissipated in
52 resistor is 125 W.
[Ans: I = 2.5 A; E1 = 32.5 volts; E2
= 30 volts]
5.
Find Vxy in the circuit
[Ans: Vxy = 12 volts with y
positive]
6.
Reduce the network of the figure into a single resistance between A and B
terminals by suitable star delta conversion.
Ans
: 4 Ω / 3
[Hint: Start simplifying the
inner star into delta, then to star and then to delta and so on.]
7.
Determine the resistance between the terminals A and B in the network shown.
[Ans:
4.23 Ω]
[Hint: Replace 3, 5 and 8 Ω
star into its equivalent delta.]
8.
Find the current through 10 Ω resistor
by Delta-star conversion.
[Ans:
4A]
Electric Circuit Analysis: Unit II: Network Reduction and Theorems for dc and ac Circuits : Tag: : Star, delta transformation or t, π transformation | dc and ac Circuits - Exercise
Related Topics
Related Subjects
Electric Circuit Analysis
EE3251 2nd Semester 2021 Regulation | 2nd Semester EEE Dept 2021 Regulation