Constants| Periodic Table Part A The figure shows a U-shaped conducting rail tha

Question

Constants| Periodic Table Part A The figure shows a U-shaped conducting rail that is oriented vertically in a horizontal magnetic field. The rail has no electric resistance and does not move. A slide wire with mass m and resistance R can slide up and down without friction while maintaining electrical contact with the rail. The slide wire is released from rest. (Figure 1) Determine the value of a terminal velocity erm if 1-21.0 cm, m- 8.00g, R- 0.1002, and B 0.510 T m/s Submit Request Answer KReturn to Assignment Provide Feedback

Explanation / Answer

Part A )

L = 21 cm

= 0.21 m

m = 8 g

= 8 X 10-3 kg

R = 0.1 Ohm

B = 0.51 T

Vterm = ?

using F = B i L

and i = e/R

and e = B L V

and F = mg

F = B (e/R) L

F = B (B L V/R) L

F = B2 L2 V/R

m g = B2 L2 V/R

V = m g R / B2 L2

so Vterm = m g R / B2 L2

Vterm = 8 X 10-3 X 9.8 X 0.1 / 0.512 X 0.212

Vterm = 0.6834978 volts

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