A current of 6.0 A flows through a resistance of 50 ?. How much power is dissipated?
1.8 × 10^3 W
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For a monatomic gas, 3R/2 is
a. the specific heat per mole at constant volume. b. the specific heat per unit mass at constant volume. c. NAkB. d. none of the above.
A 60.0-?F capacitor is in series with a 100-? resistor connected across an ac source of frequency 120 Hz. What is the phase angle?
A) -12.4° B) +12.4° C) -77.6° D) +77.6° E) 90.0°
In an electroplating process, it is desired to deposit 40 mg of silver on a metal part by using a current of 2.0 A
How long must the current be allowed to run to deposit this much silver? The silver ions are singly charged, and the atomic mass of silver is 108 g/mol. (e = 1.60 × 10-19 C, NA = 6.02 × 1023 atoms/mol) A) 16 s B) 18 s C) 20 s D) 22 s
Charge A has 10 electric field lines coming out, charge B has 20 lines coming out, and charge C has 30 lines coming in. Which pair of these charges will have the largest force between them if placed one cm apart?
a. A and B c. More information is needed. b. B and C d. C and A