A certain brand of hot dog cooker applies a potential difference (120 V) to opposite ends of the hot dog and cooks by means of the joule heat produced. If 60 kJ is needed to cook each hot dog, what current is needed to cook four hot dogs simultaneously in 3.0 min?
A. 11 A
B. 2.8 A
C. 8.3 A
D. 2.1 A
E. 3.6 A
Answer: A
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A sub-surface region that holds and transmits water is called a/an
A) aquifer. B) hydrometer. C) water table. D) aquiclude.
A very large sheet of a conductor carries a uniform charge density of 4.00 pC/mm2 on its surfaces. What is the electric field strength 3.00 mm outside the surface of the conductor? (?0 = 8.85 × 10-12 C2/N • m2)
A) 4.52 × 105 N/C B) 2.26 × 105 N/C C) 9.04 × 105 N/C D) 0.452 N/C E) 0.226 N/C
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A. 60 Ns. B. zero. C. 100 Ns. D. 80 Ns. E. Can't tell without knowing the weight of the box