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Lelu [443]
3 years ago
5

The two conducting rails in the drawing are tilted upwards so they each make an angle of 30.0° with respect to the ground. The v

ertical magnetic field has a magnitude of 0.045 T. The 0.19 kg aluminum rod (length = 1.6 m) slides without friction down the rails at a constant velocity. How much current flows through the rod?
Physics
1 answer:
dolphi86 [110]3 years ago
8 0

Answer:

The current flows through the rod is 14.9 A.

Explanation:

Given that,

Magnetic field = 0.045 T

Mass of aluminum rod  = 0.19 kg

Length = 1.6 m

Angle = 30.0°

We need to calculate the force

Using resolving force

F\cos\theta=mg\sin\theta

F=mg\tan\theta

Put the value into the formula

F=0.19\times9.8\times\tan30

F=1.075\ N

We need to calculate the current flows through the rod

Using formula of magnetic force

F=iLB

i=\dfrac{F}{LB}

Put the value into the formula

i=\dfrac{1.075}{1.6\times0.045}

i=14.9\ A

Hence, The current flows through the rod is 14.9 A.

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Answer:

given,

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final speed of car = 0 m/s

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rejecting the negative term.

hence, maximum speed of the car could be V = 23.01 m/s

 

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