When a magnetic field is first turned on, the flux through a 35-turn loop varies with time according to 4m = 9.ot2 - 7.0t, where 4, is in milliwebers, t is in seconds, and the loop is in the plane of the page with the unit normal pointing outward.(a) What is the emf (in mv) induced in the loop as a function of time? (Use the following as necessary: t. Do not include units in your answer.)E =What is the direction of the induced current at the following times?(b) t = 0sO clockwiseO counterclockwiseO The magnitude is zero.(c) t = 0.10 sclockwisecounterclockwiseThe magnitude is zero.(d) t = 1.0 sO clockwisecounterclockwiseO The magnitude is zero.(e) t = 2.0 sO clockwisecounterclockwiseO The magnitude is zero.

using electromagnetic induction concept and Lenz's law

When a magnetic field is first turned on, the flux through a 35-turn loop varies with time according to m = 9.0t2 - 7.0t, where , is in milliwebers, t is in seconds, and the loop is in the plane of the page with the unit normal pointing outward. (a) What is the emf (in mv) induced in the loop as a function time? (Use the following as necessary: t. Do not include units in your answer.) What is the direction of the induced current at the following times? (b) t= 0s O clockwise O counterclockwise O The magnitude is zero. (c) t = 0.10 s O clockwise O counterclockwise O The magnitude is zero. (d) t= 1.0 s O clockwise O counterclockwise O The magnitude zero. (e) t= 2.0 s O clockwise O counterclockwise O The magnitude is zero.

When a magnetic field is first turned on, the flux through a 35-turn loop varies with time according to m = 9.0t2 - 7.0t, where , is in milliwebers, t is in seconds, and the loop is in the plane of the page with the unit normal pointing outward. (a) What is the emf (in mv) induced in the loop as a function time? (Use the following as necessary: t. Do not include units in your answer.) What is the direction of the induced current at the following times? (b) t= 0s O clockwise O counterclockwise O The magnitude is zero. (c) t = 0.10 s O clockwise O counterclockwise O The magnitude is zero. (d) t= 1.0 s O clockwise O counterclockwise O The magnitude zero. (e) t= 2.0 s O clockwise O counterclockwise O The magnitude is zero.

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter13: Electromagnetic Induction

Section: Chapter Questions

Problem 33P: A single-turn circular loop of wire of radius 50 mm lies in a plane perpendicular to a spatially...

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Question

When a magnetic field is first turned on, the flux through a 35-turn loop varies with time according to 4m = 9.ot2 - 7.0t, where 4, is in milliwebers, t is in seconds, and the loop is in the plane of the page with the unit normal pointing outward.
(a) What is the emf (in mv) induced in the loop as a function of time? (Use the following as necessary: t. Do not include units in your answer.)
E =
What is the direction of the induced current at the following times?
(b) t = 0s
O clockwise
O counterclockwise
O The magnitude is zero.
(c) t = 0.10 s
clockwise
counterclockwise
The magnitude is zero.
(d) t = 1.0 s
O clockwise
counterclockwise
O The magnitude is zero.
(e) t = 2.0 s
O clockwise
counterclockwise
O The magnitude is zero.

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