Question

In: Physics

A 9.0-cmcm -long wire is pulled along a U-shaped conducting rail in a perpendicular magnetic field....

A 9.0-cmcm -long wire is pulled along a U-shaped conducting rail in a perpendicular magnetic field. The total resistance of the wire and rail is 0.31 ΩΩ . Pulling the wire with a force of 1.1 NN causes 3.5 WW of power to be dissipated in the circuit.

Part A

What is the speed of the wire when pulled with 1.1 N? Express your answer in meters per second

Part B

What is the strength of the magnetic field? Express your answer in tesla.

Solutions

Expert Solution


Related Solutions

The magnetic field perpendicular to a circular wire loop 7.7 cmcm in diameter is changed from...
The magnetic field perpendicular to a circular wire loop 7.7 cmcm in diameter is changed from +0.44 TT to -0.27 TT in 150 msms , where + means the field points away from an observer and - toward the observer. Calculate the induced emf.
A metal wire is resting on a U-shaped conducting rail, as shown in (Figure 1) ....
A metal wire is resting on a U-shaped conducting rail, as shown in (Figure 1) . The rail is fixed in position, but the wire is free to move. A) If the magnetic field is increasing in strength, which way does the wire move? Select the correct answer and explanation. B) If the magnetic field is decreasing in strength, which way does the wire move? Select the correct answer and explanation.
A magnetic field is along the xy plane and the z plane is perpendicular to the...
A magnetic field is along the xy plane and the z plane is perpendicular to the magnetic field. In which plane(s) is the magnetic flux the greatest? Please explain.
A 20-cmcm-diameter circular loop of wire is placed in a 0.64-T magnetic field. a) When the...
A 20-cmcm-diameter circular loop of wire is placed in a 0.64-T magnetic field. a) When the plane of the loop is perpendicular to the field lines, what is the magnetic flux through the loop? Express your answer to two significant figures and include the appropriate units. b) The plane of the loop is rotated until it makes a 45  angle with the field lines. What is the angle in the equation ΦB = BAcos⁡θ for this situation? Express your answer using...
A perfectly conducting U-shaped rail is spanned by a rod which is able to slide without...
A perfectly conducting U-shaped rail is spanned by a rod which is able to slide without friction. The rod has a mass m =1 .2 kg and a resistanceR =2 .0?. The rod and rail sit in a uniform magnetic ?eld of magnitude B =0 .4 T, which is out of the page as shown in the ?gure below. The long sections of the rail are separated by a distance W =0 .25 m. Rod W F Part A (a)...
1.a. A 0.5 m wire moves perpendicular to a .02 T magnetic field at a speed...
1.a. A 0.5 m wire moves perpendicular to a .02 T magnetic field at a speed of 25 m’s. Find the induced e.m.f. in the wire. 1.b. A circular coil of wire has 100 turns, an internal area of 0.25 m2. A magnetic field inside the coil changes form 0.02 T to 0.08 T in 0.001 seconds. Find the induced e.m.f. in the coil. 1.c Find the magnetic flux inside a coil that has a magnetic field of 0.02 T...
1.a. A 0.5 m wire moves perpendicular to a .02 T magnetic field at a speed...
1.a. A 0.5 m wire moves perpendicular to a .02 T magnetic field at a speed of 25 m’s. Find the induced e.m.f. in the wire. 1.b. A circular coil of wire has 100 turns, an internal area of 0.25 m2. A magnetic field inside the coil changes form 0.02 T to 0.08 T in 0.001 seconds. Find the induced e.m.f. in the coil. 1.c Find the magnetic flux inside a coil that has a magnetic field of 0.02 T...
You hold a wire coil so that the plane of the coil is perpendicular to a magnetic field vector B.
You hold a wire coil so that the plane of the coil is perpendicular to a magnetic field vector B. Vector Bis kept constant but the coil is rotated so that the magnetic field, vector B , is now in the plane of the coil. How will the magnetic flux through the coil change as the rotation occurs? Check all that apply. The flux is unchanged because the magnitude of vector B is constant. The flux increases because the angle...
Find the magnetic field a distance r from the center ofa long wire that has...
Find the magnetic field a distance r from the center of a long wire that has radius a and carries a uniform current per unit area j in the positive z-direction.PART AFirst find the magnetic field, B? out(r? ),outside the wire (i.e., when the distance ris greater than a). (Figure 1)Express B? out(r? ) in terms of the given parameters, the permeability constant ?0, the variables a, j (the magnitude of j? ), r,?, and z, and the corresponding unit...
The magnetic field at a distance ro from a long straight wire carrying a current I...
The magnetic field at a distance ro from a long straight wire carrying a current I is given by B=u0I/2PI ro . For the statements below, circle the word or phrase that correctly completes the sentence. A) For a fixed current of 3.00 A in the wire, the magnetic field sensed by a Hall probe will _________________ if the distance r0is changed from 0.6 cm to 1.2 cm. (double, triple, reduce to half, reduce by 0.6 mT) B) If the...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT