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NETWORK THEOREM MCQs

1. An ideal constant voltage source has _______ resistance.

(A) zero


(B) 10Ω


(C) Infinite


(D) 5Ω




2. An ideal constant current source has _______ resistance.

(A) Infinite


(B) zero


(C) Small


(D) very large




3. In superposition theorem, all the voltage sources except ___ are removed.

(A) Three


(B) Two


(C) One


(D) Any of above




4. In superposition, all the voltage sources except one are removed leaving behind their _______ resistance, if any.

(A) Extrinsic


(B) Intrinsic


(C) External


(D) Internal




5. Rth is _______.

(A) Thevenin resistance


(B) Thevenin rating


(C) Thevenin resistances


(D) Thevenin resisting




6. While calculating Rth _______ voltage sources are removed.

(A) All


(B) None


(C) One


(D) Two




7. While calculating Rth, all voltage sources are removed but not their _______ resistance.

(A) Load


(B) External


(C) Internal


(D) All of above




8. _______ equivalent of a circuit consists of a constant current source and a resistance in parallel.

(A) Superposition’s


(B) Norton’s


(C) Thevenin’s


(D) Any of above




9. Norton’s equivalent of a circuit consists of a constant current source with a _______ resistance.

(A) Series


(B) Infinite


(C) Parallel


(D) External




10. Thevenin resistance Rth is found _______.

(A) Between any two open terminals


(B) By short circuiting the given two terminals


(C) By removing voltage and internal resistance


(D) Same as for Vth




11. While thevenizing a circuit Vth equals _______.

(A) Short circuit terminal voltage


(B) none of above


(C) EMF of the battery


(D) Open circuit terminal voltage




12. Rth is the same as _______.

(A) Vth Open Circuit Voltage


(B) RN


(C) Infinite resistance


(D) internal resistance




13. RL in a circuit is _______.

(A) Load resistor


(B) Linear resistor


(C) Light resistor


(D) Liquid resistance




14. There are _______ resistances in delta connections.

(A) One


(B) Three


(C) Two


(D) Four




15. If the resistances are same, both star and delta arrangements will be _______.

(A) Equal


(B) Reciprocal


(C) Un-equal


(D) Opposite




16. The term Vth is called _______.

(A) Thevenin's voltage


(B) Thevenin’s velocity


(C) Theoretical voltage


(D) none of above




17. Network theorems are used to _______ the complex circuits.

(A) Usage


(B) construct


(C) Analyze


(D) derail




18. Constant voltage source has very _______ internal impedance.

(A) Low


(B) High


(C) Random


(D) fixed




19. Voltage source provides _______.

(A) Current


(B) Voltage


(C) None of above


(D) Both a and b




20. Current source provides _______.

(A) Voltage


(B) Current


(C) impedance


(D) a & c




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