Page 100 - Teach Yourself Electricity and Electronics

80 Basic dc circuits

14. Suppose you have three resistors in parallel, each with a value of 68,000 .
Then the total resistance is:
A. 23 .
B. 23 K .
C. 204 .
D. 0.2 M .
15. There are three resistors in parallel, with values of 22 , 27 , and 33 . A
12-V battery is connected across this combination, as shown in Fig. 4-11. What is
the current drawn from the battery by this resistance combination?
A. 1.3 A.
B. 15 mA.
C. 150 mA.
D. 1.5 A.

4-11 Illustration for quiz
question 15.

16. Three resistors, with values of 47 , 68 , and 82 , are connected in series
with a 50-V dc generator, as shown in Fig. 4-12. The total power consumed by this
network of resistors is:
A. 250 mW.
B. 13 mW.
C. 13 W.
D. Not determinable from the data given.

4-12 Illustration for quiz
question 16.

17. You have an unlimited supply of 1-W, 100- resistors. You need to get a 100-Ω,
10-W resistor. This can be done most cheaply by means of a series-parallel matrix
of
A. 3 3 resistors.