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a wire long and with mass is positioned horizontally near the earth's surface and perpendicular to a horizontal magnetic field of magnitude . what current i must flow through the wire in order that the wire accelerate neither upwards nor downwards? the magnetic field is directed into the page.



Answer :

449.63 mA current i must flow through the wire in order that the wire accelerate neither upwards nor downwards.

What do you mean by current ?

Electrical charge carriers, such as electrons, flow as current. From negative to good elements, current flows. The ampere is the SI unit used to measure electric current (A). One coulomb of electrical charge moving across a certain place in one second is referred to as a single ampere of current.

Briefing:

Length of the wire, L = 0.6 m

Mass of the wire length, m = 11 g

                                            = 11 * 10⁻³ kg

Magnetic field , B = 0.4 T

Know we know that :

ILB = mg

or I= mg/BL

I = (11 * 10⁻³)(9.81)/(0.4)(0.6)

I = 0.4496 A

I = 449.63 mA

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The complete question is -

A wire 0.6 m long and with mass m = 11 g is positioned horizontally near the earth's surface and perpendicular to a horizontal magnetic field of magnitude B = 0.4 T. What current I must flow through the wire in order that the wire accelerate neither upwards nor downwards? The magnetic field is directed into the page.

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