A pair of parallel conducting rails that are L = 12 cm apart lies at right angles to a uniform magnetic field of 0.7 T directed into the page, as shown in the figure below. A R = 17 resistor is connected across the rails. A conducting bar is moved to the right at 2 m/s across the rails. B, into page R ww Submit Oup 1) What is the current in the resistor? (Express your answer to two significant figures.) down 2) What direction is the current in the bar (up or down)? Submit Ø Submit Ø 2 m/s O to the left 4) What direction is the magnetic force on the bar due to the induced current? to the right upwards downwards into the page out of the page Submit 3) What is the magnetic force on the bar due to the induced current? (Express your answer to two significant figures.) L mA + mN +
A pair of parallel conducting rails that are L = 12 cm apart lies at right angles to a uniform magnetic field of 0.7 T directed into the page, as shown in the figure below. A R = 17 resistor is connected across the rails. A conducting bar is moved to the right at 2 m/s across the rails. B, into page R ww Submit Oup 1) What is the current in the resistor? (Express your answer to two significant figures.) down 2) What direction is the current in the bar (up or down)? Submit Ø Submit Ø 2 m/s O to the left 4) What direction is the magnetic force on the bar due to the induced current? to the right upwards downwards into the page out of the page Submit 3) What is the magnetic force on the bar due to the induced current? (Express your answer to two significant figures.) L mA + mN +
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Transcribed Image Text:A pair of parallel conducting rails that are L = 12 cm apart lies at
right angles to a uniform magnetic field of 0.7 T directed into the
page, as shown in the figure below. A R = 17 resistor is connected
across the rails. A conducting bar is moved to the right at 2 m/s
across the rails.
R
ww
Submit
down
1) What is the current in the resistor? (Express your answer to two
significant figures.)
Submit
2) What direction is the current in the bar (up or down)?
• up
B, into page
Submit
Ø
O to the left
2 m/s
4) What direction is the magnetic force on the bar due to the
induced current?
to the right
upwards
downwards
into the page
out of the page
Submit
3) What is the magnetic force on the bar due to the induced current?
(Express your answer to two significant figures.)
L
mA
+
mN
+
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