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Grade: 12th pass

                        

The electric field of a wave is given by E=E0( i+j)/√2 cos(kz +wt) .At t=0, a positively charged particle is at the point (x,y,z) =(0,0,pie/k).If it's instantaneous velocity at (t=0) is v0 (k) the force acting on it due to the wave is: (1) 0 (2) parallel to(i+j)/√2 (3) antiparallel to (i+j)√2 (4) parallel to (k)

The electric field of a wave is given by E=E0( i+j)/√2 cos(kz +wt) .At t=0, a positively charged particle is at the point (x,y,z) =(0,0,pie/k).If it's instantaneous velocity at (t=0) is v0 (k) the force acting on it due to the wave is:
(1) 0
(2) parallel to(i+j)/√2
(3) antiparallel to (i+j)√2
(4) parallel to  (k)

6 months ago

Answers : (1)

Rituraj Tiwari
askIITians Faculty
1792 Points
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6 months ago
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