| 1 |
The slope of q-t curve at any instant of time gives. |
- A. Voltage
- B. Current
- C. Charge
- D. Botha a and b
|
| 2 |
Resistance of choke is |
- A. zero
- B. Large
- C. Very small
- D. Infinite
|
| 3 |
In chopke coil the resistance X<sub>L</sub> an resistance R are: |
- A. X<sub>L</sub>=R
- B. X<sub>L</sub><<R
- C. X<sub>L</sub>>>R
- D. X<sub>L</sub>=<span style="color: rgb(34, 34, 34); font-family: arial, sans-serif; font-size: 16px;">∞</span>
|
| 4 |
A capacitor is perfectly insulator for: |
- A. Direct current
- B. Alternating current
- C. Direct as well as alternating current
- D. None of these
|
| 5 |
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
|
| 6 |
The most common source of an A.C. Voltage is. |
- A. Motor
- B. Cell
- C. Generator
- D. Thermo couple
|
| 7 |
If the frequency of A.C. supplied is doubled then the capacitive reactance becomes. |
- A. Half
- B. Two
- C. Four times
- D. One fourth
|
| 8 |
Direct current can not flow through. |
- A. Inductor
- B. Resistor
- C. Transistor
- D. Capacitor
|
| 9 |
An inductor of 1 henry inductance has a reactance 500 ohms, then the frequency required is approximately |
- A. 50 Hz
- B. 100 Hz
- C. 80 Hz
- D. 120 Hz
|
| 10 |
Electro magnetic waves emitted from radio antenna are. |
- A. Stationary
- B. Longitudinal
- C. Transvers
- D. Both a and b
|
