At what speed must the sliding rod in Figure 22.7 move to produce an emf of 1.00

Question

At what speed must the sliding rod in Figure 22.7 move to produce an emf of 1.00 V in a 1.55 T field directed perpendicular to the rods and into the page, given the rod's length is 28.0 cm?
(No Response) m/s

A bicycle generator rotates at 1850 rad/s, producing an 18.0 V peak emf. It has a 1.00 cm by 3.00 cm rectangular coil in a 0.636 T field.(a) How many turns are in the coil?
(No Response) turns
(b) Is this number of turns practical for a 1.00 cm by 3.00 cm coil?

No

At what speed must the sliding rod in Figure 22.7 move to produce an emf of 1.00 V in a 1.55 T field directed perpendicular to the rods and into the page, given the rod's length is 28.0 cm? (No Response) m/s A bicycle generator rotates at 1850 rad/s, producing an 18.0 V peak emf. It has a 1.00 cm by 3.00 cm rectangular coil in a 0.636 T field.(a) How many turns are in the coil? (No Response) turns (b) Is this number of turns practical for a 1.00 cm by 3.00 cm coil? No Yes

Explanation / Answer

Note that

emf = B v L

--> v = emf / [B L]

Thus,

v = 2.30 m/s   [ANSWER]

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Note that

Vmax = N B A w

--> N = Vmax / [B A w]

and

A = L * W = 3E-4 m^2

Then

N = 51 turns [ANSWER]

No, this is not practical.

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