Imagine that an arbitrary amperian loop completely surrounds a wire that carries current directly toward us, as shown in the left diagram below. We then bring an identical wire close to the loop, as shown in the right diagram. 
How does C:\Users\mam clarisse\Desktop\2019-10-27 17_00_53-ch14_clicker [Compatibility Mode] - Microsoft PowerPoint.png at the point P change in this process?
A. The quantity increases.
B. The quantity decreases.
C. The quantity remains the same.
D. One cannot determine the change from what is given.
A. The quantity increases.
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Which of the following statements was true beyond the frost line (but not interior to it)?
a. It was so warm that only metal and rock could condense from the gas. b. This was the only region that flattened into a disk. c. No object as small as a terrestrial planet could form. d. It was cold enough for hydrogen compounds to condense into ices
What are comets made of?
A) silicates and rocky dust B) metallic dust particles C) dark colored complex hydrocarbons D) methane, ammonia, and water ice E) All of the above.
Express 45°C in °F
A) 81°F B) 25°F C) 57°F D) 113°F E) 127°F
Which of the following statements about electrical charge is true?
A) A positive charge and a negative charge will repel each other. B) Two positive charges will attract each other. C) Two negative charges will attract each other. D) A positive charge and a negative charge will attract each other.