Description: Exercise 29.35 The conducting loop in the shape of a quarter-circle
ID: 2298208 • Letter: D
Question
Description: Exercise 29.35
The conducting loop in the shape of a quarter-circle shown in the figure has a radius of 10.7cm and a resistance of 0.177?. The magnetic field strength within the dotted circle of radius 3.29cm is initially 2.08T. The magnetic field strength then decreases from 2.08Tto 1.04T in 1.93s.
a) Find the magnitude of the induced current.
Please include a multiplication sign (*) to indicate that two units are being multiplied.
i= [Num] [Units]
b) Find the direction of the induced current in the loop.
The induced current flows (Click For List)clockwisecounterclockwise around the loop.
The conducting loop in the shape of a quarter-circle shown in the figure has a radius of 10.7cm and a resistance of 0.177?. The magnetic field strength within the dotted circle of radius 3.29cm is initially 2.08T. The magnetic field strength then decreases from 2.08Tto 1.04T in 1.93s.
a) Find the magnitude of the induced current.
Please include a multiplication sign (*) to indicate that two units are being multiplied.
i= [Num] [Units]
b) Find the direction of the induced current in the loop.
The induced current flows (Click For List)clockwisecounterclockwise around the loop.
Explanation / Answer
a) emf = (2.08-1.04)*0.25*pi*0.107^2/1.93
= 4.85*10^-3
current = emf/resistance
=0.0274 A
b)right hand thumb rule
will flow clockwise