| 1 |
In frequency modulation which factor changed. |
- A. Amplitude of charge carriers
- B. Frequency of charge carriers
- C. Amplitude of signal
- D. Frequency of signal
|
| 2 |
X<sub>L</sub>= |
- A. 2πfL
- B. 1/2πfL
- C. 2πfL
- D. fL/2π
|
| 3 |
Impedance is denoted by: |
- A. A
- B. Z
- C. P
- D. Q
|
| 4 |
The natural frequency of L.C circuit is equal to |
|
| 5 |
During each cycle A.C. voltage reaches a peak value. |
- A. Once
- B. Twice
- C. Thrice
- D. Four time
|
| 6 |
At high frequency, the current through a capacitor is |
- A. Small
- B. Infinity
- C. Zero
- D. Large
|
| 7 |
Main reason for world wide use of A.C. is |
- A. It is cheaper
- B. Transmitted
- C. Botha a and b
- D. Reaches in short time
|
| 8 |
Power dissipation is a pure inductive or in a pure capacitance circuit is: |
- A. 10<sup>6</sup>
- B. 0
- C. 10<sup>∘</sup>
- D. Maximum
|
| 9 |
Direct current can not flow through. |
- A. Inductor
- B. Resistor
- C. Transistor
- D. Capacitor
|
| 10 |
The mean value of A.C. in a cycle is. |
|
