DEHRADUN INSTITUTE OF TECHNOLOGY DEPARTMENT OF ELECTRICAL ENGINEERING

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BASIC NETWORK ANALYSIS(TEEBASIC NETWORK ANALYSIS(TEEBASIC NETWORK ANALYSIS(TEEBASIC NETWORK ANALYSIS(TEE----301)301)301)301)

UNITUNITUNITUNIT----3(NETWORK THEOREM(AC)3(NETWORK THEOREM(AC)3(NETWORK THEOREM(AC)3(NETWORK THEOREM(AC)

ASSIGNMENT NO.2ASSIGNMENT NO.2ASSIGNMENT NO.2ASSIGNMENT NO.2

“BASED ON THEVENIN“BASED ON THEVENIN“BASED ON THEVENIN“BASED ON THEVENIN THEOREM”THEOREM”THEOREM”THEOREM”

Q.1find the Thevenin equivalent circuit for the portion of network between a and b for (fig. 1.a & 1.b)?

Fig 1.a Fig. (1.b)

Ans1. (ZTh = 21.312 Ω _32.196°, ETh= 2.131 V _32.196)

Q.2 a. Find the Thévenin equivalent circuit for the network external to the resistor R2 in Fig.2.

b. Using the results of part (a), determine the current i of the same figure.

Fig (2) Fig (3)

Ans2. ((a) ZTh =4Ω _90° ETh =4 V + 10 V _0° Ans3. ( )

(b) I=0.5 A+ 1.11A__26.565) ( )

Q.3 Determine the Thévenin equivalent circuit for the network external to the 4-kΩ inductive reactance of

Fig. 3?

Q.4 Find the Thévenin equivalent circuit for the network to the left of terminals a-a’ of Fig. 4 shown below.

Ans4. ( , )