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Circuit Theorems – 1 – 3

11. Superposition theorem is not valid for :

(a) voltage responses
(b) current responses
(c) power responses
(d) all the three

ANSWER

EXPLANATION

12. Maximum power is transferred when load impedance is :

(a) equal to source impedance
(b) equal to half of the source impedance
(c) equal to zero
(d) none of the above

ANSWER

EXPLANATION

13. Superposition theorem is not applicable to networks containing :

(a) non-linear elements
(b) dependent voltage sources
(c) dependent current sources
(d) transformers

ANSWER

EXPLANATION

14. Three equal resistance of 3 Ω are connected in star. What is the resistance in one of the arms in an equivalent delta circuit ?

(a) 10 Ω
(b) 3 Ω
(c) 9 Ω
(d) 27 Ω

ANSWER

EXPLANATION

1 2 3

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