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A charge of 2.0 muC moves with a speed o...

A charge of` 2.0 muC` moves with a speed of `2.0 X10^6 m s^(-1)` along the positive x-axis. A magnetic field `vecB` of strength `(0.20 vecJ +0.40veck) T` exists in space. Find the magnetic force acting on the charge

Text Solution

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The force on the charge
`=vecqu X vecB`
`=(2.0 xx 10^(-6) C )(2.0X 10^6 ms^(-1)vec i) xx (0.20 vec j + 0.40 veck ) T`
`= 4.0(0.20 vec I xx vecj + 0.40 vec j xx vecK )N`
`= (0.8 vec k - 1.6 vec j)N.`
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