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-BARSIC- [3]
3 years ago
5

Which variable do we define as the "usable energy" in a system. Also known as the energy used to move something. a. Potential En

ergy b. Kinetic Energy c. Work d. Power
Physics
1 answer:
Dafna1 [17]3 years ago
5 0

Answer:

B. Kinetic Energy

Explanation:

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Two long, straight wires are separated by 0.120 m. The wires carry currents of 11 A in opposite directions, as the drawing indic
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Answer:

The magnitude of the magnetic field is 1.83 x 10^{-5} T.

Explanation:

The flow of an electric current in a straight wire induces magnetic field around the wire. When current is flowing through two wires in the same direction, a force of attraction exists between the wires. But if the current flows in opposite directions, the force of repulsion is felt by the wires.

In the given question, the direction of flow of current through the wires is opposite, thus both wires applies the same field on each other. The result to repulsion between them.

The magnetic field (B) between the given wires can be determined by:

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But, I = 11 A, r = 0.12 m and U_{0} = 4\pi x 10^{-7} Tm/A

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B = \frac{4\pi *10^{-7}*11 }{2\pi *0.12}

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Something that orbiys other things in space​
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