According to lenz law, in a loop placed in a region of changing magnetic flux, current is induced such that the current resists the change in flux.
In the given problem, initially magnetic flux was into the page that changes uniformly and finally,the magnetic flux is out of the page.
So,change in magnetic flux is always out of the page. Hence ,induced current will try to resist this change and magnetic flux due to induced current must be into the page. Hence,by right hand thumb rule, induced current must be clockwise (CW)for the complete 2 seconds(first option)
Chapter 23 Conceptual (20%) Problem l: A loop is placed in a region where the magnetic...
Consider a conducting loop placed on a horizontal plane in a region of uniform magnetic field directed downward. If the magnitude of the magnetic field begins to decrease, what will the direction of the induced current in the loop be? Select one: a. Clockwise, so that the magnetic field of the loop is upward b. Clockwise, so that the magnetic field of the loop is downward c. Counterclockwise, so that the magnetic field of the loop is upward d. Counterclockwise,...
A circular loop lies in the plane of the screen. There is an initial magnetic field pointing toward you of strength B(initial). The field is changed in a short time so that the final magnetic field is the same strength but now pointing into the page. During this process, which is the best description of the directions for the Induced B field and the direction of the induced EMF respectively. up toward the top of the page, into the page...
A circular loop lies in the plane of the screen. There is an initial magnetic field pointing toward you of strength B(initial). The field is changed in a short time so that the final magnetic field is the same strength but now pointing into the page. During this process, which is the best description of the directions for the Induced B field and the direction of the induced EMF respectively. up toward the top of the page, out of the...
Consider at time t= 0, a uniform a magnetic field (directed out of the page) B = 6.0tis turned on as shown below. The loop has radius 20.0 cm and it is connected to a resistance R = 5.0 92 shown as below. What is the magnitude of the induced emf and the current in the loop at t=2.5 sec? Is the direction of induced emf clockwise or counterclockwise in the loop? M R = 592
a
circular loop of radius 0.78 m is placed in a region where there is
a magnetic field of strength 5 t directed perpendicularly out of
the plane of loop if the loop is rotated by 90 deg in 0.1 seconds
so that the plane of the loop is parallel to the field calculate
the average emf induced in the loop
A circular loop of radius 0.78 m is placed in a region where there is a magnetic field of...
i need help ASAP please
8. Consider at time t = 0, a uniform a magnetic field (directed out of the page) B-6.04" is tumed on as shown below. The loop has radius 20.0 cm and it is connected to a resistance R-5.09 shown as below. What is the magnitude of the induced emf and the current in the loop at t-2.5 sec? Is the direction of induced emf clockwise or counterclockwise in the loop? R=522
please explain why
1. (6 pints Indicate the direction of the induced current in each loop by writing clockwise, counterclockwise or none. a) The current in the wire is increasing. d) The loop is moving to the right. The arrows indicate the magnetic field. CCW none B. b) The loop is moving towards the top of the page. e) The loop is increasing in size Cw none х x x x x x x X x x x x x...
24 A circular loop of wire is in a region of spatially uniform magnetic field directed into the page. Determine the direction of the induced current (as viewed from above) when the magnitude of the magnetic field is increasing. a. Clockwise b. Counterclockwise c. No current flows. 25 An electron enters a region where the uniform magnetic field strength is 4.0 T at a velocity of 4.88 x 10^m/s perpendicular to the field. Determine the radius of gyration of the...
A circular loop of wire with radius r= 0.0480m and reistance R = 0.160 Ω is in a region of spatially uniform magnetic field, as shown in the figure. The magnetic field is directed out of the plane of the figure. The magnetic field has an initial value of 8.00 T and is decreasing dB/ dt = -0.680 T a) Is the induced current in the loop clockwise or counterclockwise? b) What is the rate at which electrical energy is being dissipated...
A conducting loop is formed by running a wire completely around the edge of this page. A uniform magnetic field directed into the page is increasing at the rate of 2.5 T/s. What is the direction of the current induced in the loop? A) The induced current will move counterclockwise around the edge of the page. B) The induced current will alternate between clockwise and counterclockwise. C) The induced current will move clockwise around the edge of the page. D)...