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 metal wire is resting on a U-shaped conducting r

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.

Expert Solution

genius_generous answered 2 years ago

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...

A piece of insulated wire is shaped into a figure eight as shown in the figure...

A piece of insulated wire is shaped into a figure eight as shown in the figure below. For simplicity, model the two halves of the figure eight as circles. The radius of the upper circle is 4.00 cm and that of the lower circle is 8.00 cm. The wire has a uniform resistance per unit length of 7.00 Ω/m. A uniform magnetic field is applied perpendicular to the plane of the two circles, in the direction shown. The magnetic field...

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)...

The current in the wire shown in (Figure 1) is increasing

The current in the wire shown in (Figure 1) is increasing. Part A What is the direction of the induced current in loop A? clockwise counterclockwise No current is induced in this loop. Part B What is the direction of the induced current in loop B? clockwise counterclockwise No current is induced in this loop.

The right half of the square loop of wire shown in (Figure 1) is in a...

The right half of the square loop of wire shown in (Figure 1) is in a 0.25 T magnetic field directed into the page. The current in the loop is 1.5 A in a clockwise direction. Part A What is the magnitude of the force on the loop? Express your answer with the appropriate units. Part B In which direction does this force act? to the left downward to the right upward

A conducting sphere is placed within a conducting spherical shell as shown in the figure below....

A conducting sphere is placed within a conducting spherical shell as shown in the figure below. The conductors are in electrostatic equilibrium. The inner sphere has a radius of 1.50 cm, the inner radius of the spherical shell is 2.25 cm, and the outer radius of the shell is 2.75 cm. The inner sphere has a charge of 225 nC, and the spherical shell has zero net charge.

The right half of the square loop of wire shown in Figure P24.37

The right half of the square loop of wire shown in Figure P24.37 is in a 0.85 T magnetic field directed into the page. The current in the loop is 1.3 A in a clockwise direction. What is the magnitude of the force on the loop, and in which direction does it act?

A straight metal wire is placed between the poles of a magnet, as shown in the...

A straight metal wire is placed between the poles of a magnet, as shown in the figure. Magnetic field is uniform in the space between the poles. If there is a current I flowing through this wire in the direction from C to A, what is the direction of the magnetic force acting on the wire?

A “U” shaped tube (with a constant radius) is filled with water and oil as shown....

A “U” shaped tube (with a constant radius) is filled with water and oil as shown. The water is a height h1 = 0.36 m above the bottom of the tube on the left side of the tube and a height h2 = 0.1 m above the bottom of the tube on the right side of the tube. The oil is a height h3 = 0.33 m above the water. Around the tube the atmospheric pressure is PA = 101300...

An aluminum wire consists of the three segments shown in the following figure. The current in...

An aluminum wire consists of the three segments shown in the following figure. The current in the top segment is 13A Part B For each of these three segments, find the current density J. Part C For each of these three segments, find the electric field E. Part D For each of these three segments, find the drift velocity vd. Part E For each of these three segments, find the electron current i.

Question