Circuit Theory – Multiple Choice Questions (MCQs)

1. 37. Nodal analysis is based on:

   • A. KVL
   • B. KCL
   • C. Ohm's Law
   • D. Superposition Theorem

2. 38. Mesh analysis is based on:

   • A. KCL
   • B. KVL
   • C. Ohm's Law
   • D. Norton's Theorem

3. 39. What is a "dependent source"?

   • A. A source whose value is independent of other circuit variables
   • B. A source whose value depends on a voltage or current elsewhere in the circuit
   • C. A battery
   • D. A current source

4. 40. An ideal voltage source has:

   • A. Infinite internal resistance
   • B. Zero internal resistance
   • C. Negative internal resistance
   • D. Variable internal resistance

5. 41. An ideal current source has:

   • A. Infinite internal resistance
   • B. Zero internal resistance
   • C. Negative internal resistance
   • D. Variable internal resistance

6. 42. What is "mutual inductance"?

   • A. The inductance of a single coil
   • B. The inductance between two coils due to the magnetic field of one linking with the other
   • C. The resistance of a coil
   • D. The capacitance between two coils

7. 43. The coupling coefficient (k) between two coils indicates:

   • A. The efficiency of energy transfer
   • B. The degree of magnetic coupling between them
   • C. The resistance of the coils
   • D. The voltage induced

8. 44. What is "phasor" representation in AC circuits?

   • A. A vector representing the instantaneous value of a sinusoidal quantity
   • B. A complex number that represents the amplitude and phase of a sinusoidal quantity
   • C. A real number
   • D. A scalar

9. 45. What is "resonance" in an AC circuit?

   • A. The frequency at which the circuit's resistance is maximum
   • B. The frequency at which the inductive reactance equals the capacitive reactance
   • C. The frequency at which the current is zero
   • D. The frequency at which the voltage is zero

10. 46. The "bandwidth" of a resonant circuit is inversely proportional to its:

    • A. Resistance
    • B. Quality factor
    • C. Inductance
    • D. Capacitance

11. 47. What is "transient response" of a circuit?

    • A. The steady-state behavior of a circuit
    • B. The behavior of a circuit immediately after a change in input or circuit parameters
    • C. The response to DC input
    • D. The response at resonance

12. 48. What is "steady-state response" of a circuit?

    • A. The behavior of a circuit immediately after a change
    • B. The behavior of a circuit after all transients have died out
    • C. The response to pulsed input
    • D. The response to initial conditions