HomeElectronics Multiple choice question MCQ online testBasic electronics MCQ question answer Basic electronics MCQ question answer Leave a Comment / Electronics Multiple choice question MCQ online test Spread the love 0% 0 votes, 0 avg Created on September 19, 2022Basic electronics Basic electronics 2 1 / 31 Category: Electronics basics An example of potential energy is a battery the sun tea-kettle steam a moving vehicle Solar cell is a photovoltaic cell. No external voltage is applied and solar cell responsivity is directly proportional to the wavelength of the incident light. It doesn’t produce dark current. 2 / 31 Category: Electronics basics Which of the following is wrong about solar cell electronic devices? Solar cell responsivity is directly proportional to the wavelength of light It produces dark current It is a photovoltaic cell No external voltage is applied 3 / 31 Category: Electronics basics Which of the following is not a physical component of an electronic circuit? Temperature Capacitor Diode Inductor 4 / 31 Category: Electronics basics When the light increases, the reverse minority carrier current in a photodiode Reverses direction Decreases Increases Is unaffected 5 / 31 Category: Electronics basics In which of the following region does BJT act as the amplifier electronic device? Active Saturation Cut-off Reverse saturation 6 / 31 Category: Electronics basics Current is considered as the movement of nuclei charge protons electrons 7 / 31 Category: Electronics basics What is the color code for a 220 5% resistor? Red, Red, Brown, Silver Orange, Orange, Black, Gold Red, Red, Brown, Gold Red, Red, Black, Gold 8 / 31 Category: Electronics basics A photodiode is normally Reverse-biased Forward-biased Emitting light Neither forward- nor reverse biased 9 / 31 Category: Electronics basics Which of the following semiconductor is mostly used to construct electronic circuits? Germanium Tin Silicon Selenium 10 / 31 Category: Electronics basics The term used to designate electrical pressure is voltage resistance voltage conductance 11 / 31 Category: Electronics basics Forbidden Energy gap (EG) of a semiconductor in electronic devices depends on which of the following factors? Recombination and Generation Material constant Interatomic distance Electron affinity Photo diode is a photoconductive cell. External voltage is applied and P-N junction is connected in reverse bias. Electron-hole pairs are generated by photons in the depletion layer. 12 / 31 Category: Electronics basics Which of the following is correct about photodiode electronic devices? No external voltage is applied It is a photovoltaic cell connected in reverse bias Electron-hole pairs are generated by impurity injection in depletion layer 13 / 31 Category: Electronics basics One coulomb passing a point in one second is one charge ampere ohm volt 14 / 31 Category: Electronics basics For a low voltage rectification: Both bridge and full-wave rectifier are suitable Bridge rectifier is suitable Two diode full-wave rectifier is suitable None 15 / 31 Category: Electronics basics A voltmeter is used: in parallel with the circuit to measure current to measure coulombs in series with the circuit 16 / 31 Category: Electronics basics For typical operation, you need to use reverse bias with a All of the above Varactor Photodiode Zener diode 17 / 31 Category: Electronics basics Which of the following is not an electronic device? A mobile A magnifying glass A computer A keyboard 18 / 31 Category: Electronics basics The varactor is usually Reverse-biased Operated in the breakdown region Forward-biased Unbiased Degenerative N-type and degenerative p-type semiconductors are used in tunnel diodes. Tunnel diodes are used in microwave electronic devices and circuits 19 / 31 Category: Electronics basics Which type of semiconductor is used in Tunnel Diode? Extrinsic semiconductor Elemental semiconductor Compound semiconducto Degenerated semiconductor LEDs need compound type semiconductors because they have direct band gap. In direct band gap, photons are easily generated when electrons release energy during recombination. 20 / 31 Category: Electronics basics What type of semiconductor is used in LED electronic circuits? Degenerated semiconductor Compensated semiconductor Intrinsic semiconductor Compound semiconductor P-N junction diodes have two modes of operations i.e. forward and reverse bias. 21 / 31 Category: Electronics basics Which of the following is wrong about P-N junction diodes used in electronic devices? They have three modes of operations They have diffusion capacitance at high-frequency AC voltage They can act as ON-OFF switches They have dynamic resistance at low-frequency AC voltage 22 / 31 Category: Electronics basics To display the digit 8 in a seven-segment indicator, G must be off F must be on All segments must be on C must be lighted 23 / 31 Category: Electronics basics Which of the following has a negative-resistance region? Tunnel diode Step-recovery diode Schottky diode Optocoupler 24 / 31 Category: Electronics basics A blown-fuse indicator uses a Back diode Light-emitting diode Constant-current diode Zener diode 25 / 31 Category: Electronics basics Which resistive component is designed to be temperature sensitive? Rheostat Potentiometer Thermistor Photoconductive cell 26 / 31 Category: Semiconductor diode (PN junction) Which type of diode is work as a Variable Capacitor? Photo diode LED Varactor Diode Tunnel Diode 27 / 31 Category: Electronics basics f the depletion layer gets wider, the capacitance is variable Stays the same Decreases increases 28 / 31 Category: Electronics basics Which of the following is true about Zener diode? It is lightly doped It is used in forward bias It is mostly used in voltage regulator electronic circuits It is used in forward bias Mass action law is related to the concentration of electrons and holes in a semiconductor. Degenerative type semiconductors show similar behavior to metal. So, Mass action law is not valid for them. 29 / 31 Category: Electronics basics Mass action law is not valid for which type of semiconductors in electronic devices? Elemental Degenerative Compensated Compound 30 / 31 Category: Electronics basics Which voltage source converts chemical energy to electrical energy? Electrical generator Battery Solar cell Electronic power supply 31 / 31 Category: Electronics basics Which of the following is the correct order of turn-off times? MOSFET < BJT < IGBT < SCR MOSFET < IGBT < BJT < SCR SCR < BJT < IGBT < MOSFET BJT < MOSFET < IGBT < SCR Electronic devices like MOSFET have the lowest turn-off times (nanoseconds). BJT has turn-off times in between nanoseconds to microseconds. IGBT and SCR have turn-off times of about 1 and 5 microseconds respectively. Your score is LinkedIn Facebook 0% Restart quiz Exit Anonymous feedback Thank you Send feedback Spread the love
