A rectangular conducting loop is placed near a long wire carrying a current I as shown in the figure below. If I increases in time, what can be said of the current induced in the loop? a) The direction of the current depends on the size of the loop. b) The current is clockwise c) The current is counterclockwise d) The current is zero. e) Nothing can be said about the current in the loop without more information

A rectangular conducting loop is placed near a long wire carrying a current I as shown in the figure below. If I increases in time, what can be said of the current induced in the loop? a) The direction of the current depends on the size of the loop. b) The current is clockwise c) The current is counterclockwise d) The current is zero. e) Nothing can be said about the current in the loop without more information

Physics for Scientists and Engineers, Technology Update (No access codes included)

9th Edition

ISBN:9781305116399

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter31: Faraday’s Law

Section: Chapter Questions

Problem 31.3OQ: A rectangular conducting loop is placed near a long wire carrying a current I as shown in Figure...

See similar textbooks

Similar questions

A rectangular conducting loop is placed near a long wire carrying a current I as shown in Figure OQS1.3. If I decreases in time, what can be said of the current induced in the loop? (a) The direction of the current depends on the size of the loop. (b) The current is clockwise. (c) The current is counterclockwise. (d) The current is zero. (e) Nothing can he said about the current in the loop without more information.
A coil is moved through a magnetic field as shown below. The field is uniform inside the rectangle and zero outside. What is the direction of the induced current and what is the direction of the magnetic force on the coil at each position shown?
Eddy current are induced currents set up in a piece of metal when it moves through a nonuniform magnetic field. For example, consider the flat metal plate swinging at the end of a bar as a pendulum, as shown in Figure CQ20.9. (a) At position 1, the pendulum is moving from a region where there is no magnetic field into a region where the field B is directed into the paper. Show that at position 1 the direction of the eddy current is counterclockwise. (b) At position 2, the pendulum is moving out of the field into a region of zero field. Show that the direction of the eddy current is clockwise in this case. (c) Use right-hand rule number 2 to show that these eddy currents lead to a magnetic force on the plate directed at shown in the figure. Because the induced eddy current always produces a retarding force when the plate enters or leaves the field, the swinging plate quickly comes to rest. Figure CQ20.9
A short rod of length a moves with its velocity vparallel to an infinite wire carrying a current I (see below). If the end of the rod nearer the wire is a distance b from the wire, what is the emf induced in the rod?
When a magnet is thrust into a coil as in Figure 23.4(a), what is the direction of the louse exerted by the coil on the magnet? Draw a diagram showing the direction of the current induced in the coil and the magnetic field it produces, to justify your response. How does the magnitude of the force depend on the resistance of the galvanometer?
Shown below is a conducting rod that slides along metal rails. The apparatus is in a uniform magnetic field of strength 0.25 T, which is directly into the page. The rod is pulled to the right at a constant speed of 5.0 m/s by a force . The only significant resistance in the circuit comes from the 2.0resistor shown. (a) What is the emf induced in the circuit? (b) What is the induced current? Does it circulate clockwise or counter clockwise? (c) What is the magnitude of(d) What are the power output of and the power dissipated in the resistor?
A rectangular copper loop of mass 100 g and resistance 0.2 is in a region of uniform magnetic field that is perpendicular to the area enclosed by the ring and horizontal to Earth's surface (see below). The loop is let go from rest what it is at the edge of the nonzero magnetic field region. (a) Find an expression for the speed when the loop just exits the region of uniform magnetic field. (b) If it was let go at t = 0, what is the tune when it exits the region of magnetic field for the following values, a=25cm,b=50cm,B=3T,g=9.8m/s2 ?Assumethat the magnetic field of the induced current is negligible compared to 3 T.
A rectangular loop of dimensions and w moves with a constant velocity v away from a long wire that carries a current I in the plane of the loop (Fig. P.10.46). The total resistance of the loop is R. Derive an expression that gives the current in the loop at the instant the near side is a distance r from the wire. Figure P30.46
A metal bar of mass m slides without friction over two rails a distance D apart in the region that has a uniform magnetic held of magnitude B0 and direction perpendicular to the rails (see below). The two rails are connected at one end to a resistor whose resistance is much larger than the resistance of the rails and the bar The bar is given an initial speed of vg. It is found to slow down. How far does the bar go before coming to rest? Assume that the magnetic held of the induced current is negligible compared to B0
Two rectangular loops of wire lie in the same plane as shown in Figure OQ31.11. If the current I in the outer loop is counterclockwise and increases with time, what is true of the current induced in the inner loop? More than one statement may be correct, (a) It is zero, (b) It is clockwise, (c) It is counterclockwise, (d) Its magnitude depends on the dimensions of the loops, (e) Its direction depends on the dimensions of the loops.
A square bar of mass m and resistance R is sliding without friction down very long, parallel conducting rails of negligible resistance I see below) The two rails are a distance ' apart and are connected to each other at the bottom of the incline by a zero-resistance wire. The rails are inclined at an angle , and there is a uniform vertical magnetic field B throughout the region, la) Show that the bar acquires a terminal velocity given by vmgRsinB2I2cos2 Calculate the work per unit time done by the force of gravity. (c) Compare this with the power dissipated in the Joule heating of the bar (d) What would happen if B were reversed?
An Ampere loop is chosen as shown by dashed lines for a parallel constant magnetic field as shown by solid arrows. Calculate BdI for each side of the loop then find the entire BdI . Can you think of an Ampere loop that would make the problem easier? Do those results match these?