Question

Conducting Rails Two conducting rails 31.5 cm apart rest on a 4.97

Conducting Rails

Two conducting rails 31.5 cm apart rest on a 4.97

0 0
Add a comment Improve this question Transcribed image text
Answer #1

gravitational force = magnetic force

==> m g sin(theta) = B L i

==> m g sin(theta) = B L (emf/R)

==> m g sin(theta) = B L (B L v cos(theta)/R)

==> m g sin(theta) = B^2 L^2 (v cos(theta)/R)

==> v = (m g R sin(theta))/(B^2 L^2 cos(theta))

==> v = (0.0450*9.8*0.750*sin(4.97))/(0.700*0.700*0.315*0.315*cos4.97)

==> v = 0.592 m/s

Add a comment
Answer #2

formula for terminal velocity is

V = Rmg sin theta/(B^2L^2 cos^ theta)

where R is resisatnce L is Length B is mag field

so here

V = 0.75 * 0.045 * 9.8* sin 4.9/(0.7*0.315* cos 4.97)^2

V = 0.593 m/s

Add a comment
Know the answer?
Add Answer to:
Conducting Rails Two conducting rails 31.5 cm apart rest on a 4.97
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions
  • Two parallel conducting rails with negligible resistance are41.0 {\rm cm} apart and are connected together...

    Two parallel conducting rails with negligible resistance are 41.0 cm apart and are connected together at one end by an 18.8Ω resistor. A conducting bar, also with negligible resistance, is free to slide along the rails. The system is in a region where a 315 mT magnetic field points perpendicular to the plane of the rails, as shown in (Figure 1). If the bar is pulled along the rails at 5.69 m/s, what's the current in the circuit comprising the...

  • A conducting bar slides without friction on two parallel horizontal rails that are 50 cm apart...

    A conducting bar slides without friction on two parallel horizontal rails that are 50 cm apart and connected by a wire at one end. The resistance of the bar and the rails is constant and equal to 0.10 0. A uniform magnetic field is perpendicular to the plane of the rails. A 0.080-N force parallel to the rails is required to keep the bar moving at a constant speed of 0.50 m/s. What is the magnitude of the magnetic field...

  • Two resistanceless rails rest 29 cm apart on a 4.5 ∘ ramp. They are joined at...

    Two resistanceless rails rest 29 cm apart on a 4.5 ∘ ramp. They are joined at the bottom by a 0.80 Ω resistor. At the top a copper bar of mass 0.065 kg (ignore its resistance) is laid across the rails. The whole apparatus is immersed in a vertical 0.70 T field. What is the terminal (steady) velocity of the bar as it slides frictionlessly down the rails?

  • Two resistanceless rails rest 25 cm apart on a 3.0 ramp. They are joined at the...

    Two resistanceless rails rest 25 cm apart on a 3.0 ramp. They are joined at the bottom by a 0.80 2 resistor. At the top a copper bar of mass 0.040 kg (ignore its resistance) is laid across the rails. The whole apparatus is immersed in a vertical 0.50 T field. Part A What is the terminal (steady) velocity of the bar as it slides frictionlessly down the rails? Express your answer using two significant figures. AEG ROO? Submit Request...

  • Two parallel conducting rails with negligible resistance are 50.0 cm apart and are connected together at...

    Two parallel conducting rails with negligible resistance are 50.0 cm apart and are connected together at one end by an 16.8-Ω resistor. A conducting bar, also with negligible resistance, is free to slide along the rails. The system is in a region where a 425-mT magnetic field points perpendicular to the plane of the rails, as shown in (Figure 1). How fast should the bar be pulled in order to produce a current of 0.150 A? At what rate does...

  • A pair of parallel conducting rails that are L = 22 cm apart lies at right...

    A pair of parallel conducting rails that are L = 22 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 = 172 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 L 2 m/s ♡ ♡ ♡ 1) What is the current in the resistor? (Express your answer...

  • a) Two resistanceless rails rest 23 cm apart on a 6.0∘ ramp. They are joined at...

    a) Two resistanceless rails rest 23 cm apart on a 6.0∘ ramp. They are joined at the bottom by a 0.50 Ω resistor. At the top a copper bar of mass 0.030 kg (ignore its resistance) is laid across the rails. The whole apparatus is immersed in a vertical 0.85 T field. What is the terminal (steady) velocity of the bar as it slides frictionlessly down the rails? b) Design a dc transmission line that can transmit 975 MW of...

  • A conducting bar of mass m is placed on two long conducting rails

    A conducting bar of mass m is placed on two long conducting rails a distance l apart. The rails are inclined at an angle theta with respect to the horizontal, andthe bar is able to slide on the rails with negligible friction. The bar and rails are in a uniform and constant magnetic field of magnitude B orientedperpendicular to the incline. A resistor of resistance R connects the upper ends of the rails and completes the circuit as shown. The...

  • Example Variation Problem 27.30 Two parallel conducting rails with negligible resistance are 50.0 cm apart and...

    Example Variation Problem 27.30 Two parallel conducting rails with negligible resistance are 50.0 cm apart and are connected together at one end by an 16.8-2 resistor. A conducting bar, also with negligible resistance, is free to slide along the rails. The system is in a region where a 325-mT magnetic field points perpendicular to the plane of the rails, as shown in (Figure 1). Part A How fast should the bar be pulled in order to produce a current of...

  • A conducting pustion bar slides without friction on two parallel horizontal rails that are 50cm apart...

    A conducting pustion bar slides without friction on two parallel horizontal rails that are 50cm apart and connected by a wire at one end. The resistance of the bar and the rails is constant and caual to 0.10 hat uniform magnetic field is perpendicular to the Plane of the rails of 0.080-N force parallel to the rails is reauired to keep the at a constant speed of c. 50 m/s. What is the magnitude of the magnetic field in Tesla?...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT