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Magnetic Field Produced by Loops and¬†Solenoids

Magnetic Field Produced by Loops and¬†Solenoids

29. Sources of Magnetic Field / Magnetic Field Produced by Loops and Solenoids / Problem 7

A solenoid is used in a laboratory experiment. It is 25.0 cm long with 800 loops of wire and carries a 6.0 A current. A U-shaped copper wire carrying a 3.0-A current is placed inside the solenoid. The U-shaped wire has a side of length 10.0 cm and is perpendicular to the solenoid's magnetic field as shown. Given μ₀ =4π×10⁻⁷ T⋅m/A, what is the net force on the U-shaped wire?

ANSWERS OPTIONS

A

$3.6 \times 10^{-3} \mathrm{~N}$ , into the page

B

$6.0 \times 10^{-3} \mathrm{~N}$ , into the page

C

$7.2 \times 10^{-3} \mathrm{~N}$ , out of the page

D

$8.4\times 10^{-3}\mathrm{~N}$ , out of the page

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