You wish to construct a simple ac generator with a maximum output of 12 V when rotated at 60 Hz. A magnetic field of 0.050 T is available. #If the area of the rotating coil is 100 cm2, how many turns are needed?

What will be an ideal response?


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Physics & Space Science

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In a nonlinear elastic material, the ratio of the increment in applied stress to the increment in strain measured at the total strain is the _____________modulus.

Fill in the blank(s) with the appropriate word(s).

Physics & Space Science

Consider a situation where you exert a force F on a crate of mass m, moving it at a speed v a distance d across a floor in a time interval t. The work you do on the crate is __________

Fill in the blank(s) with correct word

Physics & Space Science

According to the second law of thermodynamics, which of the following applies to the heat received from a high temperature reservoir by a heat engine operating in a complete cycle?

a. must be completely converted to work b. equals the entropy increase c. converted completely into internal energy d. cannot be completely converted to work

Physics & Space Science

The two most common igneous rocks are basalt and granite. Basalt is commonly found ________, and granite is found ________

A) on the ocean floor; on the continents B) on both the ocean floor and continental land; only on the continents C) on the continents; on the ocean floor D) on the ocean floor; on both the ocean floor and on continental land

Physics & Space Science