This is a repeat of the first test but with different values.
Give yourself the marks shown for each question. This is a self-scoring test. 


1. Can two cells in a "battery pack" have different output currents?  (1 mark) 


2. How many cells in a 9v battery?  (1 mark) 


3. What is the "end life voltage" for a dry cell?  (1 mark) 


4. When charging a 12v battery, the red (positive) lead of the charger goes to the positive or negative of the battery?  (1 mark) 


5. If a 47R 1/4watt resistor and 10R 1/4watt resistor are connected in series and the voltage applied is increased, which resistor will "burn out" first?     (1 mark) 


6. Identify the electrolytic: 100n,   103,   100u,   220p,     (1 mark) 


7. A battery has a capacity of 4.5amp-hrs, how long will it (theoretically) last at 450mA current drain?  (1 mark) 


8. What is the value of the following:   1n0   (1 mark) 


9. A LED is connected to a 9v supply via a 470R, with the anode to the 0v rail. If the resistance is decreased to 220R, will the LED glow brighter or duller? (1 mark) 


10. What is the voltage drop across a diode? (1 mark)   


11. Why is a lamp often used in series with a circuit to protect the circuit? (1 mark) 


12. Two types of transistors are: NPN and _______    (1 mark)        


13. Name the input lead of a transistor   (1 mark) 


14.  What is the value of the resistor:   orange  orange   gold   gold     (1 mark)


15. Which capacitor is larger:    1n   0.01u    102  1,000p   (1 mark) 


16. If two capacitor are placed in series, does the combined capacitance increase or decrease?  (1mark) 


17. Place these resistors in ascending order:    47k    4M7    0R47  4k7   47R    470R  4R7  (1 mark) 


18. If two 2k2 resistors are placed in parallel, what is the combined resistance?     (1 mark) 


19. What is the difference between the following two ceramic capacitors:   101     100  (1 mark) 


20. Place these capacitors in ascending order:    3n3  330p   33p   33n   3p3  330n  (1 mark) 


21. Which resistor will get hotter: 1/4watt or 1/2watt?      (1 mark) 


22. What is the value of the following combination:     (1 mark)

    


23. Name the three common amplifying stages for a transistor:   (1 mark)


24.  What are the colour bands for a 1M resistor?  (1 mark) 


25. What is the value of the following resistance:    red    red    red    gold   (1 mark) 


26. What is the 3-digit code for a 100n monoblock (monolithic) capacitor?      (1 mark) 


27. Does a capacitor block DC?   (1 mark) 


28.  What is the value of two 10k resistors in series?     (1 mark)       


29. Name the gate: (1 mark) 

    


30. Can the emitter of a transistor be the output lead?        (1 mark)