the images below show four pairs of magnets. the magnets in different pairs do not affect each other. all…

the images below show four pairs of magnets. the magnets in different pairs do not affect each other. all the magnets shown are made of the same material, but some of them are different sizes. think about the magnetic force between the magnets in each pair. select the pair with the magnetic force of smallest magnitude.

the images below show four pairs of magnets. the magnets in different pairs do not affect each other. all the magnets shown are made of the same material, but some of them are different sizes. think about the magnetic force between the magnets in each pair. select the pair with the magnetic force of smallest magnitude.

Answer

Explanation:

Step1: Analyze the factors affecting magnetic force

The magnetic force between magnets depends on the poles (attract or repel) and the distance and size. Opposite - poles attract and same - poles repel. Also, the larger the magnet, the stronger the magnetic force (for the same material), and the farther the distance, the weaker the magnetic force.

Step2: Check each pair

  • Pair 1: Same - poles (N - N and S - S), distance (d_1 = 17.6\space mm), magnets are of similar size.
  • Pair 2: Opposite - poles (N - S), distance (d_2=34.7\space mm).
  • Pair 3: Opposite - poles (N - S), distance (d_3 = 17.6\space mm), but one magnet is smaller.
  • Pair 4: Opposite - poles (N - S), distance (d_4=34.7\space mm), and one magnet is smaller.

Since the magnetic force (F) is weaker for larger distances and smaller magnets (for the same material). Pair 4 has the largest distance ((34.7\space mm)) and a small magnet.

Answer:

Pair 4