الفيزياء العامة الجزء الثاني#موقع الفيزياء.كوم

Multiple choice question for part 2
2Ohm
18V
3Ohm
1Ohm
4Ohm
Figure 5
a. P 2 = 14.2 W, P 4 = 28.4 W, P 3 = 1.33 W, P 1 = 4.00 W
b. P 2 = 162 W, P 4 = 81 0 W, P 3 = 60.8 W, P 1 = 20.3 W
c. P 2 = 14.2 W, P 4 = 28.4 W, P 3 = 12.0 W, P 1 = 0.444 W
d. P 2 = 162 W, P 4 = 81.0 W, P 3 = 20.3 W, P 1 = 60.8 W
[23] When two unknown resistors are connected in series with a battery, 225
W is dissipated with a total current of 7.00 A. For the same total current,
45.0 W is dissipated when the resistors are connected in parallel. Determine
the values of the two resistors.
a. 3.32 , 2.40
b. 3.32 , 7.92
c. 1.27 , 5.86
d. 1.27 , 3.32
[24] A fully charged capacitor stores 14.0 J of energy. How much energy
remains when its charge has decreased to half its original value?
a. 3.50 J
b. 7.00 J
c. 56.0 J
d. 14.0 J
226
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