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How do you determine Polarity of an electromagnet using the left hand rule?
Wiki User
∙ 11y ago
Use the right hand rule. Take out your right hand, wrap your hand around the loop, your fingertips should curve to the direction of the wiring, that is, the current should be coming out from your wrist to your fingertip, and the direction of your thumb is the magnetic fieled produced. The thumb is N, and the other is S.
Alternative AnswerThe left-hand 'grip' rule for determining the magnetic polarity of an electromagnet applies for ELECTRON FLOW current direction -i.e. current flow from negative to positive. Grasp the electromagnet with the curl of the fingers pointing in the same direction as the electron flow current, and the thumb will indicate the north pole end of the electromagnet.
For CONVENTIONAL FLOW (positive to negative), we use the right-hand 'grip' rule instead.
Wiki User
∙ 11y ago
Wiki User
∙ 9y agoTake out your right hand, wrap your hand around the loop, your fingertips should curve to the direction of the wiring, that is, the current should be coming out from your wrist to your fingertip, and the direction of your thumb is the magnetic field produced. The thumb is N, and the other is S. Alternatively,you could use the left hand grip rule for the same.
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What rule is used to find out polarity of a current carrying solenoid?
right hand rule is used to find out the polarity of current
What is an example of polarity?
The definition of Polarity is -The uneven distribution of charges across a molecule -.so examples of polarity would be *water molecule with 2 positive hydrogen atoms and 1 negative oxygen atom *left hand and a right hand *east and west -.it's basically anything that is opposites
How do you find the polarity of capacitor wikianswerscomQHow do you find the polarity of capacitor?
To determine polarity in CAPACITORS:Electrolytic capacitors are often marked with a stripe. That stripe indicates the NEGATIVE lead.If it's an axial leaded capacitor (leads come out of opposite ends of the capacitor), the stripe may be accompanied by an arrow that points to the negative lead.Sometimes, you can look to the length of the leads as an indication of polarity. The positive lead is usually longer but be careful if you're reusing old or 2nd hand capacitors - the leads may have been trimmed.Tantalum capacitors are often marked with a '+'sign.http://www.westfloridacomponents.com/polarity.html
What information should I have at hand in order to determine how much memory I need for upgrading my desktop computer?
You will need to know what software you will be using to operate your system to help determine the amount of memory needed.
What are Real world examples of polarity?
south and north pole or left and right hand or a girl and a boy
How can polarity of electromagnet be determined if the direction of current flow is known?
Current flow is from positive to negative. Use the left hand rule for finding the north and south poles. Grab the coil in your left hand, with your fingers wrapped around the coil in the direction of the current flow. Your thumb will then point toward the north pole of the coil. Reverse the positive - negative connections to the coil and the north - south poles will change ends. The left hand rule will still be in effect as the current will now be flowing in the reverse direction as it was in the first connection.
How can the polarity of an electromagnet be determined if the directions of current flow is known?
Current flow is from positive to negative. Use the left hand rule for finding the north and south poles. Grab the coil in your left hand, with your fingers wrapped around the coil in the direction of the current flow. Your thumb will then point toward the north pole of the coil. Reverse the positive - negative connections to the coil and the north - south poles will change ends. The left hand rule will still be in effect as the current will now be flowing in the reverse direction as it was in the first connection.
How can the polarity of an electromagnet be determined if the direction of the current is known?
Current flow is from positive to negative. Use the left hand rule for finding the north and south poles. Grab the coil in your left hand, with your fingers wrapped around the coil in the direction of the current flow. Your thumb will then point toward the north pole of the coil. Reverse the positive - negative connections to the coil and the north - south poles will change ends. The left hand rule will still be in effect as the current will now be flowing in the reverse direction as it was in the first connection.
Where can you download steam?
If one wishes to download the Steam software, they should first determine the model of Valve they are using. Once they determine the Valve type, they can download the Steam software from the manufacturer.
What happen when you change the direction of current in an electromagnet?
If you change the direction of current in an electromagnet, (which by the way is just a coil of wire) then the direction of the magnetic field will also be reversed: That is to say, what was north is now south. If you want more info. look up "the left hand rule".
What is the theory of the left hand rule?
Yes bro, There's a left hand rule for coils, It's for determining polarity of an electromagnet. It stats that: If your left hand finger but the thumb are wrapped in the direction of the current passing through a coil, Then your thumb is Indicating the north pole of the electomagnet. There's also a rule in which the left hand is used: It gives us the relation between directions of magnetic field, current and force. If we keep thumb, first finger and center finger perpendicular to each other, thumb shows the direction of motion or force, First finger shows direction of magnetic Field, Center finger shows direction of Current.ro
To use your left hand to determine the direction of the voltage developed in?
To use your left hand to determine the direction of the voltage developed in moving conductor place your forefinger in the direction of the lines of force. Fleming developed this hand rule.
