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2 years ago

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Two long straight wires enter a room through a window. One carries a current of 2.9A into the room, while the other carries a cu

rrent of 4.4 out of the room. Calculate the magnitude (in T.m) of the path integral of B.ds around the window frame.

1 answer:

Degger [83]2 years ago

4 0

Answer and Explanation:

curents i = 2.9 A

i ' = 4.4 A

the magnitude (in T.m) of the path integral of B.dl around the window frame = μo * current enclosed

= μo* ( i '- i )

Since from Ampere's law

where μ o = permeability of free space = 4π * 10 ^-7 H / m

plug the values we get the magnitude (in T.m) of the path integral of B.dl = ( 4π*10^-7 ) (2.9+4.4)

= 1.884 * 10^-6 Tm

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A small rock is launched straight upward from the surface of a planet with no atmosphere. The initial speed of the rock is twice

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If gravitational effects from other objects are negligible, the speed of the rock at a very great distance from the planet will approach a value of $\sqrt{3} v_{e}$

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To express velocity which is too far from the planet and escape velocity by using the energy conservation, we get

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Where, M = Planet’s mass and G = constant.

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Similarly, kinetic energy at final would be,

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Now, adding potential and kinetic energies of initial and final and equating as below, find the final velocity as

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2 years ago

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The dependent variable is the actual variable that is measured during an experiment. It is the main purpose of setting-up of an experiment.

The experimental group is also referred to as the treatment group while the control group is the group that does not receive treatment at all or they receive fake treatment/placebo.

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