Which of the following must not be done to maintain the magnetic field over the sample uniform in space and time? Options: A . &nbspLarge pole pieces need to be used B . &nbspPole faces must be polished C . &nbspWide pole gap must be present D . &nbspMagnets can be permanent or electromagnet

Which of the following must not be done to maintain the magnetic field over the

Question

Which of the following must not be done to maintain the magnetic field over the sample uniform in space and time?

Options:

A . Large pole pieces need to be used

B . Pole faces must be polished

C . Wide pole gap must be present

D . Magnets can be permanent or electromagnet

Answer: Option C
Answer: (c).Wide pole gap must be present

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