Frequencies above ______________ kHz are called radio frequencies?

Related Mcqs:

1. In the above question, what are the values of cut-off frequencies?

   A. 140 kHz , 60 kHz
   B. 1020 kHz , 980 kHz
   C. 1030 kHz , 970 kHz
   D. None of the above

2. For frequencies above the resonant frequency , a series LC circuit behaves as a ____________load?

   A. Resistive
   B. Inductive
   C. Capacitive
   D. None of the above

3. For frequencies above the resonant frequency, a parallel LC circuit behaves as a ____________ load?

   A. Capacitive
   B. Resistive
   C. Inductive
   D. None of the above

4. For frequencies below the resonant frequency , a parallel LC circuit behaves as a ______________load?

   A. Inductive
   B. Resistive
   C. Capacitive
   D. None of the above

5. For frequencies below resonant frequency, a series LC circuit behaves as a _____________ load?

   A. Resistive
   B. Capacitive
   C. Inductive
   D. None of the above

6. Double tuned circuits are used in ____________ stages of a radio receiver?

   A. IF
   B. Audio
   C. Output
   D. None of the above

7. In a parallel LC circuit, if the input signal frequency is increased above resonant frequency then _______________?

   A. XL increases and XC decreases
   B. XL decreases and XC increases
   C. Both XL and XC increase
   D. Both XL and XC decrease

8. If Q of an LC circuit increases, then bandwidth ______________?

   A. Increases
   B. Decreases
   C. Remains the same
   D. Insufficient data

9. At series or parallel resonance, the circuit behaves as a ______________ load?

   A. Capacitive
   B. Resistive
   C. Inductive
   D. None of the above

10. At parallel resonance, the ratio L/C is ______________?

    A. Very large
    B. Zero
    C. Small
    D. None of the above