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A test $$ 1.6 \times 10^{-19} Cb $$ is moving with velocity $$ \overrightarrow v = ( 2 \hat i +3 \hat j) $$ m/sec is magnetic field $$ \overrightarrow B = ( 2 \hat i + 3 \hat j ) wb /m^2 $$ .the magnetic force on the test charge:-

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Solution

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Charge=$$1.6*10^{-19}$$

v=(2i+3j) m/s

B=(2i+3j) wb/m

Cross product of v and B is 0

Therefore F is 0

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