An electron is moving along positive x-axis `A` unifrom electric filed exists to wards negative y-axis. What should be the direaction of magnetic field of suitable magnitude so that net force of electrons is zero .A. positivez-axisB. negative z-axisC. positivey-axisD. negative y-axis

An electron is moving along positive x-axis `A` unifrom electric filed

1.	An electron is moving along positive x-axis `A` unifrom electric filed exists to wards negative y-axis. What should be the direaction of magnetic field of suitable magnitude so that net force of electrons is zero .A. positivez-axisB. negative z-axisC. positivey-axisD. negative y-axis
Answer» Correct Answer - B `oversetrarr(F_(e)) + oversetrarr(F_(m)) = 0 ` `qoversetrarrE + q (oversetrarrV xx oversetrarrB) =0 implies oversetrarr(E) + oversetrarrV xx oversetrarrB =0` `E (-hatj) + VB (hati xx hatn) =0 implies hati xx hatn` should be in `hatj . So hatn = - hatk` .

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An electron is moving along positive x-axis `A` unifrom electric filed exists to wards negative y-axis. What should be the direaction of magnetic field of suitable magnitude so that net force of electrons is zero .A. positivez-axisB. negative z-axisC. positivey-axisD. negative y-axis

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