The principal difference between a step-up and step-down transformer is
A) step-up transformers can handle more current.
B) different geometries.
C) different ratios of turns for each set of loops or coils.
D) none of the above
Answer: C
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Weight and g: The acceleration due to gravity on Planet A is one-sixth what it is on Planet B, and the radius of the Planet A is one-fourth that of Planet B. The mass of Planet A is what fraction of the mass of Planet B?
A. 1/6 B. 1/16 C. 1/24 D. 1/96 E. 1/12
Assuming all the atoms exhaled by Julius Caesar in his last dying breath are still in the atmosphere, we breathe in at least one of them each
A) single breath. B) day. C) month. D) ten years. E) can't say for some people breathe a few of Caesar's atoms daily, while others never.
A steel ball has a mass equal to 5 kilograms. What is the ball's weight?
The resistance of the light bulb in ohms is
a. 0.05 c. 720 b. 20 d. none of the above