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3 years ago

If two wires run parallel and the current passes through both wires in the same direction, which happens to the wires?

2 answers:

5 0

I think the correct answer from the choices listed above is option B. If two wires run parallel and the current passes through both wires in the same direction, <span> the wires move apart because the magnetic fields of each wire are opposite, so they repel each other.</span>

skelet666 [1.2K]3 years ago

5 0

Answer:

A.) The wires move together because the magnetic field of each wire attracts the other wire.

Explanation:

As we know that the current in two wires are along same direction

so here magnetic field due to one wire on the adjacent wire will produce magnetic force

this magnetic force is given as

$F = i(\vec L \times \vec B)$

since the direction of length vector is along the current in the wire so here the force on two wires due to magnetic field of its adjacent wire is always towards each other.

So two current carrying wires will attract each other when current flows in the two wires in same direction

so correct answer will be

A.) The wires move together because the magnetic field of each wire attracts the other wire.

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Two drag cars race. They line up at the starting line at rest. The winning car accelerates at a constant rate a and reaches the

Mila [183]

Answer: $d=\frac{v^2}{8a}$

Explanation:

Given

winning car accelerates with a and its final velocity is v

considering they both start from rest

time taken by winning car is

v=u+at

where u=initial velocity

a=acceleration

t=time

$v=at$

$t=\frac{v}{a}$

Now loosing car is accelerating with $\frac{a}{4}$

Distance traveled by loosing car in time t

$s_1=ut+\frac{at^2}{2\cdot 4}$

$s_1=0+\frac{a}{8}\times (\frac{v}{a})^2$

$s_1=\frac{v^2}{8a}$

Thus distance d traveled by loosing car is given by $d=\frac{v^2}{8a}$

5 0

4 years ago

Derive an equation<br>Ta=1.44T1/2

ivann1987 [24]

Answer:

To derive an equation you must indicate the variable you want to solve for.
Here we have tension of an object A and Tension 1.
Two variables or unknown are given hence we cannot derive any other equations.

8 0

3 years ago

The formal beginning of psychology occurred in Germany and the United States by which two men ?

o-na [289]

Answer: Two men who helped in the development of psychology in Germany was Wilhelm Wundt, and in United States was William James.

Explanation:

Wilhelm Wundt was a German scientist, who was the first person who introduced psychology. He studied the conscious experience as a part of scientific study. It emphasis the identification of the components of the consciousness. Introspection is the process through which conscious experiences can be analyzed.

William James was a scientist, native of U.S. His purpose was to study the function of behavior all over the world. This perspective was known as functionalism. This emphasizes over the fact that how mental activities helps how organisms fit into its surrounding environment.

6 0

4 years ago

An object 82 cm high forms a virtual image 4.1 cm high located 4.6 cm behind a mirror. Find the object distance.

ioda

Answer:

The object distance is 92 cm.

Explanation:

let v be the image distance and h be the height of the image, let u the be the object distance and H be the height of the object.

then, the magification of the mirror is given by:

m = -v/u and m = h/H

so, -v/u = h/H

u = -v×H/h