Right Hand Rule Physics Practice

High School Physics Assistance » Electricity and Magnetism » Magnetism and also Electromagnetism » Understanding the Right Hand also Rules

A existing runs with a wire such that it geneprices a magnetic field. The magnetic area is in the clockwise direction in the plane of your computer display. What is the direction of the current?


Explanation:

To resolve this trouble use the right hand also preeminence. Take your appropriate hand and also make a fist. Now stick your thumb directly up. This will certainly show you the relationship in between present and magnetic field: if the magnetic area is your fingers, the existing is your thumb.

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In this problem, the only method you have the right to gain your fingers to be going clockwise in a aircraft is if your thumb is pointed straight at that plane. Point your thumb straight at the display screen. Your fingers will naturally curl in the clockwise direction. The existing should be going right into the display screen.


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Example Inquiry #1 : Magnetism And Electromagnetism


A present runs via a directly wire from ideal to left. What direction would the magnetic area be?


Possible Answers:

Out of the screen


Counter-clockwise


Right to left


Into the screen


Left to right


Correct answer:

Counter-clockwise


Explanation:

For this trouble, usage the right hand also rule. Take your appropriate hand, stick your thumb straight up and curl your fingers about in a "thumbs up" form.

If your thumb is the current, your fingers will be the magnetic field. With your thumb pointing to the left (the direction of the current), your fingers will curl in a counter-clockwise direction.

Keep in mind that the appropriate hand ascendancy for a straight wire is different from the best hand also dominance for a planar magnetic field!


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Example Concern #1 : Magnetism And Electromagnetism


A right wire carries a present directly into your computer system screen. In what direction would the magnetic area be?


Possible Answers:

Clockwise


Into the screen


Counter-clockwise


Out of the screen


Right to left


Correct answer:

Clockwise


Explanation:

For this problem, use the best hand also dominance. Take your appropriate hand also, stick your thumb right up, and also curl your fingers about in a "thumbs up" form.

See more: Table Of Contents: Thomas Calculus Table Of Contents : Thomas' Calculus

If your thumb is the existing, your fingers will certainly be the magnetic field. With your thumb pointing amethod from your face, or toward your computer screen (the direction of the current), your fingers will curl in a clockwise direction.

Note that the ideal hand also dominance for a straight wire is various from the appropriate hand also ascendancy for a planar magnetic field!


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Example Concern #1 : Understanding The Right Hand Rules


A directly wire carries a existing directly out of your computer system display. In what direction would certainly the magnetic area be?


Possible Answers:

Into the screen


Out of the screen


Left to right


Clockwise


Counter-clockwise


Correct answer:

Counter-clockwise


Explanation:

For this difficulty, usage the right hand ascendancy. Take your ideal hand, stick your thumb right up, and curl your fingers around in a "thumbs up" form.

If your thumb is the present, your fingers will be the magnetic field. With your thumb pointing towards your confront, or out from your computer screen (the direction of the current), your fingers will curl in a counter-clockwise direction.

Keep in mind that the right hand also rule for a straight wire is various from the ideal hand rule for a planar magnetic field!


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Example Inquiry #4 : Understanding The Right Hand Rules


A negatively charged ppost is moving to the best alengthy a vertical aircraft. If the force created by a continuous magnetic field is directed upwards within plane, in what direction is the magnetic field?


Possible Answers:

Out of the aircraft, towards the observer


Out of the plane, amethod from the observer


Upward within the plane


Downwards within the plane


Correct answer:

Out of the aircraft, towards the observer


Explanation:

This question requires you to use the best hand also ascendancy. Your thumb will certainly suggest to the appropriate, in the direction of the particle"s velocity. For the negatively charged particle to feel an upward pressure, the earlier of your hand, not your palm as would certainly be the instance via a positively charged particle requirements to be facing up. Exstress of your fingers provides the magnetic field point out of the aircraft, towards you. 


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