Question

5.
A particle of charge 1 uC is at rest in a magnetic field B = -2k tesla. Magnetic Lorentz force on the charge
particle with respect to an observer moving with velocity j = -5i ms' will be
(1)
Zem
12
10-5
IN​

Answer 1

Answer:

Magnetic Lorentz force on the charge particle will be

$F = 10^{-5}\hat j$

Explanation:

As we know that magnetic Lorentz force is given by

$F = q(\vec v \times \vec B)$

here we know that

$\vec v = v_q - v_{observer}$

$\vec v = 0 - (-5\hat i)$

$\vec v = 5 \hat i$

Now we will have

$F = (1\mu C)(5\hat i \times (-2\hat k))$

$F = (1\times 10^{-6})(10 \hat j)$

$F = 10^{-5}\hat j$

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Topic : Magnetic Lorentz Force

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