A straight 2.10 m wire carries a typical household current of 1.50 A (in one dir

Question

A straight 2.10 m wire carries a typical household current of 1.50 A (in one direction) at a location where the earth's magnetic field is 0.550 gauss from south to north.

Part A Find the direction of the force that our planet's magnetic field exerts on this cord if is oriented so that the current in it is running from west to east. Please ChooseThe force is directed upward. The force is directed downward. There is no force exerting on the wire. The force is directed from east to west.

Part B Find the magnitude of the force that our planet's magnetic field exerts on this cord if is oriented so that the current in it is running from west to east

Part C

Find the direction of the force that our planet's magnetic field exerts on this cord if is oriented so that the current in it is running vertically upward.

Please ChooseThe force is directed from east to west. The force is directed from west to east. The force is directed from north to south. The force is directed from south to north.

Part D

Find the magnitude of the force that our planet's magnetic field exerts on this cord if is oriented so that the current in it is running vertically upward

Part E

Find the direction of the force that our planet's magnetic field exerts on this cord if is oriented so that the current in it is running from north to south.

Please ChooseThe force is directed upward. The force is directed downward. There is no force exerting on the wire. The force is directed from north to south.

Part F

Find the magnitude of the force that our planet's magnetic field exerts on this cord if is oriented so that the current in it is running from north to south

Part G

Is the magnetic force ever large enough to cause significant effects under normal household conditions?

Please ChooseYes No

PLEASE ANSWER ALL THE QUESTIONS

Explanation / Answer

( a)

Apply right hand rule to determone the direction of force:

In this case, the direction of force is Out of the page (upward).

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( b)

Find the force by using the following equation

F = I B L sin

F = ( 1.50 A ) ( 0.550 x 10-4 T ) ( 2.10 m ) sin 90

F = 1.73 x 10-4 N

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( c)

The direction of the force that our planet's magnetic field exerts on this cord

is West (to the left)

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( d)

The magnitude of the force that our planet's magnetic field exerts on this cord is same

to force calculated in part ( b) ,  1.73 x 10-4 N

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( e ) No, there is no significant effects under normal household conditions

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