Physics, 28.11.2019 19:31 suewignall
The next two questions refer to this situation: a rectangular loop with sides of length a= 1.00 cm and b= 2.70 cm is placed near a wire that carries a current that varies as a function of time:
i(t)=3.62+1.49t2
where the current is in amperes and the time is in seconds. the distance from the straight wire to the closest side of the loop is d= 0.460 centimeters.
a-what is the magnetic flux through the loop at time t= 2.90 seconds? (define positive flux into the page.)b-what is the induced e. m.f. in the loop at time t= 2.90 seconds? (note that positive emf is clockwise.)
Answers: 3
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This is the number of complete movements of a wave per second.
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What is the efficiency of an engine that does 80 j of work and exhausts 320 j of heat while taking in 400 j of heat ? a. 10% b. 20% c. 80% d. 25%
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