JEE Main 2022 · 26 Jul · Shift 1 · Physics Q38

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PhysicsSingle correct+4 / -1Question 38 of 90

A charge particle is moving in a uniform magnetic field $\left(2\hat i+3\hat j\right)$ T. If it has an acceleration of $\left(\alpha\hat i-4\hat j\right)$ m/s $^2$ , then the value of $\alpha$ will be :

Answer and worked solution

Official answer: B

Acceleration ⟂ B. $2\alpha-12=0$ : $\alpha=6$ .

(B)

Topics:Force on a moving charge

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JEE Main 2022 · 26 Jul · Shift 1, Physics question 38