Download Solve All the Following Problems Problem 1 (15 Marks) A) Discuss

Solve All the Following Problems
Problem 1
(15 Marks)
A) Discuss briefly with drawing, how do you find the parameters
of equivalent circuit of real voltage source. (5 Marks)
B) Find the circuit model of the device inside the box shown in
the figure if the terminal voltage Vt and terminal current It are
measured and it's values tabulated, then you must calculate
the power delivered from device to a 10Ω resistor.
Vt(v)
50
25
0
1
It(A)
0
2
4
Problem 2
(15 Marks)
A) For the circuit shown in the figure below :(7 Marks)
1- Find the reading of each instrument in the figure.
2- Voltmeter internal resistance = ……..
3- Ammeter internal resistance = ………
B) For the circuit shown in the figure, how do you change the
voltage across 200Ω to : (8 Marks)
1- Half Value.
2- Double Value.
2
Problem 3
(20 Marks)
A) For the circuit shown in the figure, using Ohm's law, KVL and
KCL to find : (10 Marks)
1- Vx.
2- Power delivered by the (19 I∆) source.
B) For the circuit shown, R is adjusted till I=5A, find the value of
R using Ohm's law and KCL. (10 Marks)
3
Problem 4
(20 Marks)
A) Use the series of source transformation method to find the
voltage V in the circuit shown below. (10 Marks)
B) Use the principle of Super-position to find the voltage V in the
circuit shown below. (10 Marks)
4
Problem 5
(15 Marks)
A) Use the Node Voltage method to find the voltage V in the
circuit shown below. (10 Marks)
B) State whether the circuit satisfies the power check or not?
5
Problem 6
(15 Marks)
A) Use the Mesh Current method to find the voltage V∆ in the
circuit shown. (10 Marks)
B) State whether the circuit satisfies the power check or not?
6