Question

Kamal’s uncle was advised by his doctor to undergo an MRI scan test of his chest and gave him an estimate of the cost. Not knowing much about the significance of this test and finding it to be too expensive he first hesitated. When Kamal learnt about this, he decided to take help of his family, friends and neighbours and arranged for the cost. He convinced his uncle to undergo this test so as to enable the doctor to diagnose the disease. he got the test done and the resulting information greatly helped the doctor to give him proper treatment. 

(a) What, according to you, are the values displayed by Kamal, his family, friends and neighbours? 

(b) Assuming that the MRI scan test involved a magnetic field of 0.1T, find the maximum and minimum values of the force that this field could exert on a proton moving with a speed of 10⁴ms^–1. State the condition under which the force can be minimum.

Answer 1

(a) Values displayed by Kamal: 

(i) Being educated person knows about MRI (magnetic resonance imaging) 

(ii) Took prompt decisions to take the help of his family, friends and neighbours and arranged the cost of MRI. 

(iii) He shows his empathy, helping attitude and caring nature for his uncle.

(b) Magnetic force on moving charge particle in uniform magnetic field vector B can be given as

i.e., charge particle either move parallel or antiparallel to the magnetic field lines.