| 1 |
Vrms = |
- A. 0.7V<sub>∘</sub>
- B. <div>0.07V<sub>∘</sub></div>
- C. 0.007V<sub>∘</sub>
- D. 0.75V<sub>∘</sub>
|
| 2 |
Xc = |
- A. 1/2πfc
- B. 2πfc
- C. 2π/fc
- D. fc/2π
|
| 3 |
The flow of D.C current is opposed by |
- A. Resistor
- B. Induction
- C. Capacitor
- D. All of these
|
| 4 |
The highest value reached by the voltage or current is one cycle is called: |
- A. Peak to peak value
- B. Peak value
- C. <div>Instantaneous value</div>
- D. Root mean square value
|
| 5 |
The circuit in which current and voltage are in phase, the power factor is: |
|
| 6 |
In case of A.C. through resistor V and I are |
- A. At 0<sup> o</sup> with each other
- B. At 180 <sup>o</sup> with each other
- C. At 90<sup> o</sup> with each other
- D. At 270 <sup>o</sup> with each other
|
| 7 |
An A.C. voltmeter reads 220 V, its peak value will be |
- A. 225 V
- B. 240 V
- C. 311.12 V
- D. 300 V
|
| 8 |
In modulation, low frequency signal is known as |
- A. Carrier wave
- B. fluctuated signal
- C. Modulated carrier signal
- D. Modulation signal
|
| 9 |
At resonance frequency, the impedance of RLC series circuit is. |
- A. Maximum
- B. Minimum
- C. Zero
- D. Infinite
|
| 10 |
The peak value of alternating current is 5<b style="color: rgb(34, 34, 34); font-family: arial, sans-serif; font-size: 16px;">√2 </b><span style="color: rgb(34, 34, 34); font-family: arial, sans-serif; font-size: 16px;">A. The mean square value of current will be:</span> |
- A. 5A
- B. 2.5A
- C. 5<b style="color: rgb(34, 34, 34); font-family: arial, sans-serif; font-size: 16px;">√2A</b>
- D. 5<sup>2</sup>
|
