A wire with negligible resistance is arranged in a magnetic field with a strength of 20 T oriented into the page as shown. A slider with a mass of 250 grams is connected to the fixed wire and can slide without friction. The slider has a resistance of 3 ohms. When the slider is released from rest, it begins to accelerate downward but quickly reaches a constant velocity. a) Determine the magnitude and direction of the current in the slider as it falls at a constant speed. b) Determine the induced emf in the loop as the slider falls at a constant speed. c) Determine the speed at which the slider falls. d) If the resistance of the slider is increased, will the constant speed of the slider be lower, higher, or the same as determined in part c? Justify your answer.
A wire with negligible resistance is arranged in a magnetic field with a strength of 20 T oriented into the page as shown. A slider with a mass of 250 grams is connected to the fixed wire and can slide without friction. The slider has a resistance of 3 ohms.
When the slider is released from rest, it begins to accelerate downward but quickly reaches a constant velocity.
a) Determine the magnitude and direction of the current in the slider as it falls at a constant speed.
b) Determine the induced emf in the loop as the slider falls at a constant speed.
c) Determine the speed at which the slider falls.
d) If the resistance of the slider is increased, will the constant speed of the slider be lower, higher, or the same as determined in part c? Justify your answer.
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Given: A wire with negligible resistance is arranged in a magnetic field with a strength of 20 T oriented into the page as shown. A slider with a mass of 250 grams is connected to the fixed wire and can slide without friction. The slider has a resistance of 3 ohms.
To find:
a) Determine the magnitude and direction of the current in the slider as it falls at a constant speed.
b) Determine the induced emf in the loop as the slider falls at a constant speed.
c) Determine the speed at which the slider falls.
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