# NEET Physics Alternating Current Questions Solved

Seema's uncle was advised by his doctor to have an MRI (Magnetic Resonance Imaging) scan of his brain. Her uncle felt it to be expensive and wanted to postpone it.

When Seema learnt about this, she took the help of her family and also approached the doctor, who also offered a substantial discount. She then convinced her uncle to undergo the test to enable the doctor to know the condition of his brain.

The information thus obtained greatly helped the doctor to treat him properly.

Based on the above paragraph, answer the following questions:

(a) What according to you are the values displayed by Seema , her family and the doctor?

(b) What could be the possible reason for MRI test was performed using a magnetic field of 0.1 T., find the minimum and maximum values of the force that the magnetic field could exert on a proton (charge = $1.6×{10}^{19}$ C) moving with a speed of ${10}^{4}$ m/s.

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