A square loop of wire 0.17 m on a side lies on a horizontal table and...

A square loop of wire 0.17 m on a side lies on a horizontal table and carries a counterclockwise current of 4.8 A. The component of Earth’s magnetic field that is in the plane of the loop is 2.4×10−5T and points toward the top of the loop.

Consider a horizontal axis of rotation that passes through the center of the loop from left to right. Does the top wire of the loop want to rotate toward you (up from the table) or away from you (down into the table)?

Calculate the magnitude of the torque about the axis described in part A.

Solutions

Expert Solution

flemming left hand rule: hold the fore finger, the thumbs and the centre finger of your left hand right angle to one another. adjust your hand in such a way that forefinger points in the direction of magnetic field, centre finger points the direction of current then the direction in which thumbs points gives the direction of force acting on the conductor.

genius_generous answered 1 year ago

Next > < Previous

Related Solutions

A square single loop of wire 4.00 cm on a side with 875 turns lies in...

A square single loop of wire 4.00 cm on a side with 875 turns lies in the xy-plane. The loop is in a uniform magnetic field that changes at a steady rate from B⃗ =(0.200T)i^+(0.150T)k^B→=(0.200T)i^+(0.150T)k^ at t = 0 to B⃗ =(0.300T)i^+(−0.200T)k^ B→=(0.300T)i^+(−0.200T)k^ at t=3.00s. At the time t=2.00s, a) find the magnitude of the induced emf in the coil. b) Find the direction of the induced current in the coil as seen from a point on the +z-axis.

A 10.0-cm side square loop is fashioned from a single 4.00-m long, 100-g wire. One side...

A 10.0-cm side square loop is fashioned from a single 4.00-m long, 100-g wire. One side of the loop is attached to a horizontal, frictionless axle. The loop is suspended in a region with a uniform 10.0-mT magnetic field oriented vertically. (a) What angle does the loop make with the vertical when it carries a current of 3.40 A? (b) What magnetic torque acts on the loop?

An 80 cm by 80 cm square loop of wire lies in the xy-plane and has...

An 80 cm by 80 cm square loop of wire lies in the xy-plane and has a resistance of 0.2 Ω. It sits in a time-dependent uniform magnetic field of [0.6 sin (3π t)k] T. What is the largest value that the induced current takes on?

A square wire loop of side length a = 2.0 cm and resistance R = 10.0Ω...

A square wire loop of side length a = 2.0 cm and resistance R = 10.0Ω is inside a 1.00m long solenoid with 1000 windings such that the plane of the loop is perpendicular to the solenoid’s magnetic field. The solenoid initially carries a current I = 6.0 A, which is turned down to zero evenly over a period of 12.0 s. If the solenoid’s initial magnetic field is out of the page in the figure, what is the magnitude...

A long, straight wire lies on a horizontal table in the xy-plane and carries a current...

A long, straight wire lies on a horizontal table in the xy-plane and carries a current of 2.50 microA in the positive x-direction along the x-axis. A proton is traveling in the negative x-direction at speed 3.1 x 104 m/s a distance d above the wire. a) If you consider the moving proton as a "current", in what direction is the magnetic field produced by the moving proton at the location of the long straight wire? b) In what direction...

A long straight wire lies on a horizontal table and carries a current of 0.48 μA....

A long straight wire lies on a horizontal table and carries a current of 0.48 μA. A proton with charge qp = 1.60218 × 10^−19 C and mass mp = 1.6726 × 10^−27 kg moves parallel to the wire (opposite the current) with a constant velocity of 12200 m/s at a distance d above the wire. The acceleration of gravity is 9.8 m/s^2. Determine this distance of d. You may ignore the magnetic field due to the Earth. Answer in...

A long straight wire lies on a horizontal table and carries an ever-increasing current toward the...

A long straight wire lies on a horizontal table and carries an ever-increasing current toward the north. Two coils of wire lie flat on the table, on on either side of the wire. When viewed from above, the direction of the induced current is clockwise for the west coil counterclockwise for the west coil There is no induced current in the west coil clockwise for the east coil counterclockwise for the east coil There is no induced current in the...

A loop of wire is horizontal. A bar magnet is pushed toward the loop from below,...

A loop of wire is horizontal. A bar magnet is pushed toward the loop from below, along the axis of the loop, as shown in Figure Q25.15. a. In what direction is the current in the loop? Explain b. Is there a magnetic force on the loop? If so, in which direction? Explain c. Is there a magnetic for on the magnet? If so, in which direction?

A vertically oriented square loop of copper wire falls from rest in a region in which the field B is horizontal uniform

A vertically oriented square loop of copper wire falls from rest in a region in which the field B is horizontal uniform, and perpendicular to the plane of the loop, into a field-free region, see (Figure 1). The side length of the loop is s and the wire diameter is d. The resistivity of copper is pr and the density of copper is pm If the loop reaches its terminal speed while its upper segment is still in the magnetic...

A very long thin wire carries a current I1 is next to a square wire loop...

A very long thin wire carries a current I1 is next to a square wire loop of width L = 5 .0 cm. Both the wire and the loop lay in the same plane with a gap of s = 1 .0 cm between them. The square loop has a break where two parallel plates with surface area A = 4 .0 cm 2 are separated by a gap of d = 1 µm. The radius of the wire that...

Subjects