You will need to use the right-hand rule to find the directionof the induced cur

Question

You will need to use the right-hand rule to find the directionof the induced current. Consider the arrangement shown in thefigure. (Intro 1 figure) Part A When the switch is open, which of thefollowing statements about the magnetic flux through the wire loopis true? Assume that the direction of the vector area of the wireloop is to the right. There is no magnetic flux through the wireloop.
There is a positive flux through the wireloop.
There is a negative flux through the wireloop.
There is no magnetic flux through the wireloop.
There is a positive flux through the wireloop.
There is a negative flux through the wireloop.
There is no magnetic flux through the wireloop.
There is a positive flux through the wireloop.
There is a negative flux through the wireloop.
There is no magnetic flux through the wireloop.
There is a positive flux through the wireloop.
There is a negative flux through the wireloop.
There is no magnetic flux through the wireloop.
There is a positive flux through the wireloop.
There is a negative flux through the wireloop.
There is no magnetic flux through the wireloop.
There is a positive flux through the wireloop.
There is a negative flux through the wireloop.
There is no magnetic flux through the wireloop.
There is a positive flux through the wireloop.
There is a negative flux through the wireloop.
There is no magnetic flux through the wireloop.
There is a positive flux through the wireloop.
There is a negative flux through the wireloop.
There is no magnetic flux through the wireloop.
There is a positive flux through the wireloop.
There is a negative flux through the wireloop.
There is no magnetic flux through the wireloop.
There is a positive flux through the wireloop.
There is a negative flux through the wireloop.
Part B What is the direction of the induced currentin the wire loop (as seen from the left) when the switch isopen? There is no induced current.
The induced current is clockwise.
The induced current iscounterclockwise.
There is no induced current.
The induced current is clockwise.
The induced current iscounterclockwise.
There is no induced current.
The induced current is clockwise.
The induced current iscounterclockwise.
There is no induced current.
The induced current is clockwise.
The induced current iscounterclockwise.
There is no induced current.
The induced current is clockwise.
The induced current iscounterclockwise.
There is no induced current.
The induced current is clockwise.
The induced current iscounterclockwise.
There is no induced current.
The induced current is clockwise.
The induced current iscounterclockwise.
There is no induced current.
The induced current is clockwise.
The induced current iscounterclockwise.
There is no induced current.
The induced current is clockwise.
The induced current iscounterclockwise.
There is no induced current.
The induced current is clockwise.
The induced current iscounterclockwise.
Part C Now the switch on the electromagnet isclosed. What is the direction of the induced current in the wireloop immediately after the switch is closed (as seen from theleft)? There is no induced current.
The induced current is clockwise.
The induced current is counterclockwise. There is no induced current.
The induced current is clockwise.
The induced current is counterclockwise. There is no induced current.
The induced current is clockwise.
The induced current is counterclockwise. There is no induced current.
The induced current is clockwise.
The induced current is counterclockwise. There is no induced current.
The induced current is clockwise.
The induced current is counterclockwise. There is no induced current.
The induced current is clockwise.
The induced current is counterclockwise. There is no induced current.
The induced current is clockwise.
The induced current is counterclockwise. There is no induced current.
The induced current is clockwise.
The induced current is counterclockwise. There is no induced current.
The induced current is clockwise.
The induced current is counterclockwise. There is no induced current.
The induced current is clockwise.
The induced current is counterclockwise. There is no induced current.
The induced current is clockwise.
The induced current is counterclockwise. There is no magnetic flux through the wireloop.
There is a positive flux through the wireloop.
There is a negative flux through the wireloop.

Explanation / Answer

A & B There is no flux or current in the loop because thereis no current and hence no flux produced by the electromagnet.

C) By the right hand rule the flux produced by theelectromagnet is directed towards the right in the diagram.

The induced current in the loop will oppose this increase influx to the right so the induced current will becounterclockwise.

More simply the induced current will be in opposite direction tothe current in the electromagnet.

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