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Question
Velocity and acceleration vectors of charged particle moving perpendicular to the direction of a magnetic field at a given instant of time are →v=2^i+c^j and →a=3^i+4^j respectively. Then the value of 'c' is:
Velocity and acceleration vectors of charged particle moving perpendicular to the direction of a magnetic field at a given instant of time are →v=2^i+c^j and →a=3^i+4^j respectively. Then the value of 'c' is:
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Solution
The correct option is B -1.5
Velocity is perpendicular to acceleration => →v.→a=0=6+4×c
=> c=−6/4=−1.5
Velocity is perpendicular to acceleration
=> →v.→a=0=6+4×c
=> c=−6/4=−1.5
=> c=−6/4=−1.5
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