CISC3361 Quiz #1 study guide

1. The following is a 5 volt linear power supply. You should be able to draw it from memory:

and

2. Which of the following is an isolation, step-up and step-down transformer?

A) Has a primary winding of 200 and a secondary winding of 100.

B) Has a primary winding of 100 and a secondary winding of 200.

C) Has a primary winding of 100 and a secondary winding of 100.

 

3. A transformer can only function on AC current, why?


 

4. In the power supply circuit shown in question #1:

(A) What is the purpose of the 100uFd capacitor?

(B) What is the purpose of the .1uFd capacitor?


 

5. What is the formula for Ohm's law?


 

6. Finish these two tenents of Kirchhoff's law:


A) The sum of the voltage drops of a series circuit must equal...


B) In a series circuit, the current through one component is ...


 

7. What is the formula we use to calculate electrical power, in watts?

 

8. In the following circuit, what is the total resistance and what is the current?

 

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9. In the following circuit, what is the total resistance and what is the total current?

 

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10. What is the voltage drop across R3 and R4, in the following circuit?

 

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11. What is the total resistance of the following circuit?


 

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12. What is the current and resistance of the light bulb in this circuit?

 

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13. What is the current and resistance of each of the two bulbs in this circuit? What is the total current of the circuit?


 

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14. What is the total capacitance of the following circuit?

 

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15. What is the total capacitance of the following circuit?

 

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16. What is the total capacitance of the following circuit?

 

and

17. What is the total capacitance of the following circuit?

 

and

18. What is the total capacitance of the following circuit?

 

and