D is incredibly biased and is a leading question, and overall it is a poor excuse for any sort of unbiased surveying.
Answer:
Explanation:
Magnetic field is oriented downwards . area of loop is decreasing so downward flux is decreasing . To increase the downward flux , current induced will be clockwise so that flux generated by induced current increases the downwards flux . It is in accordance with Len'z law.
Answer:
If you apply a force to separate 2 opposite poles, the potential energy of the system increases.
The number of protons in the element.
