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SECOND QUARTER PERIODICAL TEST in ELECTRONICS

Quiz by Margarita Salaria

Grade 10
Science
Philippines Curriculum: Grades K-10 (MELC)

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50 questions
Show answers
  • Q1

    What is the charge of an anode?

     none of the above

    neutral              

    NEGATIVE

    positive    

    30s
  • Q2

    Which of the following statements is correct?

    The reverse diode in biased has high conductivity.

    A diode in reverse bias has very high resistance.

    The diode is a superconductor.

    When a diode is in forward bias the resistance is very low.

    30s
  • Q3

    What does the Moore Law state?

    The number of transistors per square inch on an integrated circuit doubles every 2 years

    The number of transistors per square inch on an integrated circuit triples every 2 years.

    The number of transistors per square inch on an integrated circuit reduces by half every 2 years.

    The number of transistors per square inch on an integrated circuit quadruples every 2 years.

    30s
  • Q4

    What is an integrated circuit replacing?

    Vacuum Tubes              

    Amplifiers                          

     Inductors

    Light Emitting Diodes

    30s
  • Q5

    Which is NOT true about integrated circuits?

    All of these.

    It can be used in high voltage.

    ICs are energy efficient.                    

    It requires less power.                      

    30s
  • Q6

    A bipolar junction transistor has __________.

    three p-n junctions  

    only one p-n junction                       

                                    

    two p-n junctions

    no p-n junctions

    30s
  • Q7

    To make diode in forward bias,

    the anode voltage must be positive with respect to its cathode.

    the anode voltage must be negative with respect to its cathode

    either a or b.

    the cathode voltage must be positive with respect to its anode

    30s
  • Q8

    What inhibits the movement of ions in the depletion region?

    potential barrier 

    electric field and potential barrier   

                                      

    electric field only

    gravitational field

    30s
  • Q9

    What happens to the depletion region when the diode is in forward bias?

    It narrows and does not allow an electric current to flow.

    It narrows and allows electric current to flow.

     It widens and does not allow an electric current to flow.

    It widens and allows electric current to flow.     

    30s
  • Q10

    What will happen to the electric current passing a NPN transistor if the voltage at the emitter VE is less than the voltage at the collector VC by at least a few tenths of a volt?

    The voltage must be equal for the electric current to flow.

    The transistor acts as an open switch and will not allow current to flow.

    The transistor acts as a closed switch allowing the current to flow.

    both b and c

    30s
  • Q11

    What is the name of the electronic circuit that is composed of individual components such as resistors, capacitors, transistors, and diodes?

    circuit board               

     chassis            

    integrated circuit             

    discrete circuit

    30s
  • Q12

    The instructions contained in a computer program are stored in which type of computer memory while the program is being used?

    CD                   

     ROM                             

    RAM                         

    floppy disk

    30s
  • Q13

    In a transistor, which is the largest of all the doped regions?

    the gate region

    the base region

    the emitter region                                  

    the collector region                                

    30s
  • Q14

    How can the duty cycle be changed for an astable multivibrator?

    By adding diodes to the circuit.

    By adding another capacitor to the circuit.

    The duty cycle cannot be changed.

    By adding an inductor to the circuit.

    30s
  • Q15

    What is a square wave generator?

    Monostablemultivibrator

    Astable multivibrator

    Flip-flop                                              

    Bi-stable multivibrator

    30s

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