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