MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 32 Mcqs, each offering curated multiple-choice questions to sharpen your Analog Electronic Circuits knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The temperature can't be lower than |
| A. | 0°F |
| B. | 0°C |
| C. | 0°R |
| D. | 0K |
| Answer» E. | |
| 2. |
The number of degree a complete circle represents is |
| A. | 180° |
| B. | 90° |
| C. | 360° |
| D. | 270° |
| Answer» D. 270° | |
| 3. |
The speed of earth when a rock of mass 60 kg falling towards earth with speed of 20 ms-1 is |
| A. | 3.5x10-33 ms-1 |
| B. | 2.4x10-22 ms-1 |
| C. | −3x1034 ms-1 |
| D. | −2.0x10-22 ms-1 |
| Answer» E. | |
| 4. |
Systematic errors occur due to |
| A. | careless usage of instruments |
| B. | overuse of instruments |
| C. | human sight |
| D. | both A and B |
| Answer» E. | |
| 5. |
In a springy collision if the fast moving trolley collides with a slow one then the fast one will bounce back at speed of |
| A. | less than slow one |
| B. | slow one |
| C. | with the same speed as before |
| D. | more than slow one |
| Answer» C. with the same speed as before | |
| 6. |
The electrons show diffraction effects because their de Broglie wavelength is similar to |
| A. | no. of atomic layers |
| B. | spacing between atomic layers |
| C. | positioning of atomic layers |
| D. | nature of atomic layers |
| Answer» C. positioning of atomic layers | |
| 7. |
The value of sampled signal is used to produce a |
| A. | decimal number |
| B. | binary number |
| C. | all of above |
| D. | octal number |
| Answer» C. all of above | |
| 8. |
Each digit in a binary number is known as |
| A. | byte |
| B. | bit |
| C. | none of above |
| D. | number |
| Answer» C. none of above | |
| 9. |
In an electric field the energy per unit positive charge is |
| A. | current |
| B. | voltage |
| C. | resistance |
| D. | frequency |
| Answer» C. resistance | |
| 10. |
Frequency below which no electrons are emitted from metal surface is |
| A. | angular frequency |
| B. | minimum frequency |
| C. | threshold frequency |
| D. | maximum frequency |
| Answer» D. maximum frequency | |
| 11. |
The bit on the left hand side has the |
| A. | zero value |
| B. | lowest value |
| C. | infinite value |
| D. | highest value |
| Answer» E. | |
| 12. |
If the connections across the resistor are reversed, then graph between current and potential difference is |
| A. | straight lined |
| B. | variable |
| C. | inverted |
| D. | constant |
| Answer» B. variable | |
| 13. |
Bernoulli's principle shows that, at points in a moving fluid where the potential energy change is very small |
| A. | the pressure is low where the velocity is high and conversely, the pressure is high where the veloci |
| B. | the pressure is low where the velocity is low and similarly, the pressure is high where the velocity |
| C. | pressure remain independent of the speed of the stationary fluid |
| D. | pressure becomes independent of the velocity of the moving fluid |
| Answer» B. the pressure is low where the velocity is low and similarly, the pressure is high where the velocity | |
| 14. |
The frequency of sky waves is |
| A. | more than 3 MHz |
| B. | less then 3 MHz |
| C. | exactly 2 MHz |
| D. | less than 2 MHz |
| Answer» B. less then 3 MHz | |
| 15. |
In transformer, the alternating current is induced in |
| A. | secondary coil |
| B. | primary coil |
| C. | resistor |
| D. | iron core |
| Answer» B. primary coil | |
| 16. |
The first communication satellites used the frequencies of |
| A. | 3 GHz for uplink |
| B. | 6 GHz for uplink |
| C. | 5 GHz for downlink |
| D. | 6 GHz for downlink |
| Answer» C. 5 GHz for downlink | |
| 17. |
The device used to store energy in electrical circuits is |
| A. | inductor |
| B. | resistor |
| C. | diode |
| D. | capacitor |
| Answer» E. | |
| 18. |
The decrease in strength of signal is known as |
| A. | modulation |
| B. | tuning |
| C. | amplification |
| D. | attenuation |
| Answer» E. | |
| 19. |
An uncharged object has |
| A. | more electrons |
| B. | more protons |
| C. | no protons and electrons |
| D. | equal electrons and protons |
| Answer» E. | |
| 20. |
If a trolley collides with a stationary trolley of double mass then they move off with |
| A. | one third of original velocity |
| B. | half of the original velocity |
| C. | triple the original velocity |
| D. | double the original velocity |
| Answer» B. half of the original velocity | |
| 21. |
The wavelength of x-rays is in range |
| A. | 10-7 to 10-14 m |
| B. | 10-8 to 10-13 m |
| C. | 102 to 109 m |
| D. | 10-10 to 10-15 m |
| Answer» C. 102 to 109 m | |
| 22. |
If a spinster staring from rest has acceleration of 5 ms-2 during 1st 2.0 s of race then her velocity after 2 s is |
| A. | 10 ms-1 |
| B. | 20 ms-1 |
| C. | 5 ms-1 |
| D. | 15 ms-1 |
| Answer» B. 20 ms-1 | |
| 23. |
The number of conduction electrons per unit volume is |
| A. | number density |
| B. | electron number |
| C. | neutron number |
| D. | proton number |
| Answer» B. electron number | |
| 24. |
As compared to sound waves the frequency of radio waves is |
| A. | higher |
| B. | lower |
| C. | none of above |
| D. | equal |
| Answer» B. lower | |
| 25. |
If the current of 20mA is passing through op-amp and voltage drop across series resistor is 10 V then the value of resistance is |
| A. | 400 Ω |
| B. | 500 Ω |
| C. | 200 Ω |
| D. | 300 &Omega |
| Answer» C. 200 Ω | |
| 26. |
The particles that are un affected by the strong nuclear force are |
| A. | leptons |
| B. | protons |
| C. | bosons |
| D. | neutrons |
| Answer» B. protons | |
| 27. |
The voltage signal generated by a microphone is |
| A. | analogue in nature |
| B. | digital in nature |
| C. | none of above |
| D. | consists of bits and bytes |
| Answer» B. digital in nature | |
| 28. |
When the distance from the center is doubled then electric field strength will |
| A. | increase by factor of four |
| B. | decrease by the factor of four |
| C. | decrease by factor of two |
| D. | will be same |
| Answer» C. decrease by factor of two | |
| 29. |
Energy transferred per unit charge is |
| A. | current |
| B. | e.m.f |
| C. | conventional current |
| D. | potential difference |
| Answer» E. | |
| 30. |
A generator is feeding power to a transmission line of characteristic impedance Z 0 . The line is terminated in impedance Z L . Standing waves will be set up if |
| A. | Z L = Z 0 |
| B. | Z L < Z 0 |
| C. | Z L > Z 0 |
| D. | both (b) and (c) |
| Answer» E. | |
| 31. |
c ( t ) and m ( t ) are used to generate an FM signal. If the peak frequency deviation of the generated FM signal is three times the transmission bandwidth of the AM signal, then the coefficient of the term cos [2 p (1008 x 10 3 t )] in the FM signal (in terms of the Bessel Coefficients) is |
| A. | 5 J 4 (3) |
| B. | J 8 (3) |
| C. | J 8 (4) |
| D. | 5 J 4 (6) |
| Answer» E. | |
| 32. |
In FM signal with a modulation index m f is passed through a frequency tripler. The wave in the output of the tripler will have a modulation index of |
| A. | m f |
| B. | 3 m f |
| C. | m f /3 |
| D. | m f /9 |
| Answer» C. m f /3 | |