Question
A charge particle is moving in a uniform magnetic field (2 i +3 j ) T . If it has an acceleration of ( i -4 j ) m / s ^2, then the value of will be :
BITSAT
Physics
Magnetic Effects of Current
2023
BITSAT 2023 (Memory Based Paper 1)
BITSAT Physics Question (2023) — Solution
Options
- A. 3
- B. 6
- C. 12
- D. 2
Answer
B. 6
Step-by-step solution
Given that uniform magnetic field, B =(2 i +3 j ) T Acceleration a =( i -4 j ) m / s ^2 We know that F=q( v B ) m a =q( v B ) Here, a B , so, a B =0 ( i -4 j )(2 i +3 j )=0 2 -12=0 =6
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