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 (100) A loop of wire sits in a uniform magnetic field as shown in the figure. The area of the loop  . The strength of the magnetic field is   Tesla.
The magnetic field strength is increased so that after 20 seconds it has a value of  Tesla. 
Waht is the EMF induced in the loop?
What is the direction of the current induced in the loop? Describe the reasoning you used to determine the direction of the current in the loop. Be sure to mention Lenz's law and state how you used it ti arrive at your conclusion.

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Sumant
SumantLv10
29 Oct 2019
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Related textbook solutions

Physics: Principles with Applications
7th Edition, 2013
Giancoli
ISBN: 9780321625922

Related questions

The force on the rectangular loop of wire in the magnetic field shown in the figure can be used to measure the field strength. The field is uniform, and the plane of the loop is perpendicular to the field.

(a) What is the direction of the magnetic force on the loop? 

(b) If a current of 5.00 A is used, what is the force per tesla on the 20.0-cm wide loop?

A loop of wire is lying flat on a tabletop. A uniform magneticfield is directed vertically UPWARDS such that it is perpendicularto the tabletop (and the loop) and pointing toward the ceiling.Beyond the edges of the table, the magnetic field is zero. Imaginethat you are looking DOWN on the loop from above. Which of thefollowing statements are true about the induced EMF in the wireloop?

1)If the magnetic field suddenly decreases, the induced currentwill be in a counter-clockwise direction.
2)If the magnetic field suddenly decreases, the induced currentwill be in a clockwise direction.
3)If the loop suddenly shrinks in size, the induced current will bein a clockwise direction.
4)If you pull the loop out of the field, by sliding it off thetable, the induced current will be in a clockwise direction.
5)Lenz's Law states that the induced current always leads to amagnetic field that OPPOSES the change in magnetic flux.
6)If you keep the loop on the table, but pull it to the right,there will be no induced current.

The force on the rectangular loop of wire in the magnetic field in Figure 22.56 can be used to measure field strength. The field is uniform, and the plane of the loop is perpendicular to the field.
(a) What is the direction of the magnetic force on the loop? Justify the claim that the forces on the sides of the loop are equal and opposite, independent at how much of the loop is in the field and do not affect the net force on the loop.
 
(b) If a current of 5.00 A is used, what is the force per tesla on the 20.0-cm-wide loop? Figure 22.56 A rectangular loop of wire carrying a current is perpendicular to a magnetic field. The field is uniform in the region shown and is zero outside that region.

Figure 22.56 A rectangular loop of wire carrying a current is perpendicular to a magnetic field. The field is uniform in the region shown and is zero outside that region. 

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