Question
Asked Nov 19, 2019
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The figure below shows a top view of a bar that can slide on two frictionless rails. The resistor is R = 5.00 Ω, and a 2.50-T magnetic field is directed perpendicularly downward, into the page. Let ℓ = 1.20 m.

(a) Calculate the applied force required to move the bar to the right at a constant speed of 1.90 m/s in N (to the right).

(b) At what rate is energy delivered to the resistor in W?

x xx x
Вin
x x
X
R
F
аp
х х х
x
x x x
xx
x
x
* * * XX
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x xx x Вin x x X R F аp х х х x x x x xx x x * * * XX

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Expert Answer

Step 1

a)

The required applie...

= B
((25)(19)(12)
-eம9)
(12)
-(25)
5
=3.42 N
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= B ((25)(19)(12) -eம9) (12) -(25) 5 =3.42 N

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