differentiate between right hand thumb rule and right hand rule
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Fleming's right hand rule is used in generators to determine the direction of induced current in the conductor when we know the direction of the magnetic field and the direction of rotation of the conductor.
To remember this, I use the following memory trick. We all know Mahatma Gandhi. His initial is MG. We also know that marching soliders say left right left. So for M (motor) use your left hand and for G (Generator) use your right hand. Now hold the thumb, fore finger and middle finger (of your left hand or right hand depending on which rule your are applying) in three mutually perpendicular direction and remember FBI. The thumb represents F, the direction of rotation. The fore finger represents B, the direction of the magnetic field. And, the middle finger represents I, current. This won't change for Fleming's left and right hand rules.
I hope my answer was of help.Thanks for asking me to answer. To understand the difference between these two rules you have to know about the two effects to which they are applicable. One is magnetic effect of current. It says that when a current carrying conductor is placed in a magnetic field then it experiences a force. Here the direction of current in conductor and direction of magnetic field is known. You have to find the direction of force on the conductor. Fleming’s left hand rule is applied here. This is applicable to motors because in motors we supply current to a coil which rotates in between magnets. This rule helps in finding in which direction coil will rotate . In other words the direction of torque ( due to the force on the sides of the coil) . Right hand rule is applicable to electromagnetic induction which tells us about the e.mf ( giving rise to current) which is generated when a coil is rotated in magnetic field. Here the direction of rotation and magnetic field are known and we have to find the direction in which current flows. This is what happens in generators where we use fossil fuel etc to rotate the coil between two magnets and current is produced. Hope it helps.
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To remember this, I use the following memory trick. We all know Mahatma Gandhi. His initial is MG. We also know that marching soliders say left right left. So for M (motor) use your left hand and for G (Generator) use your right hand. Now hold the thumb, fore finger and middle finger (of your left hand or right hand depending on which rule your are applying) in three mutually perpendicular direction and remember FBI. The thumb represents F, the direction of rotation. The fore finger represents B, the direction of the magnetic field. And, the middle finger represents I, current. This won't change for Fleming's left and right hand rules.
I hope my answer was of help.Thanks for asking me to answer. To understand the difference between these two rules you have to know about the two effects to which they are applicable. One is magnetic effect of current. It says that when a current carrying conductor is placed in a magnetic field then it experiences a force. Here the direction of current in conductor and direction of magnetic field is known. You have to find the direction of force on the conductor. Fleming’s left hand rule is applied here. This is applicable to motors because in motors we supply current to a coil which rotates in between magnets. This rule helps in finding in which direction coil will rotate . In other words the direction of torque ( due to the force on the sides of the coil) . Right hand rule is applicable to electromagnetic induction which tells us about the e.mf ( giving rise to current) which is generated when a coil is rotated in magnetic field. Here the direction of rotation and magnetic field are known and we have to find the direction in which current flows. This is what happens in generators where we use fossil fuel etc to rotate the coil between two magnets and current is produced. Hope it helps.
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okk mai ve likh sakta hua copy kar kai
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hu
Pls can anyone give me the difference between right hand thumb rule and right hand rule
i give you
because I also right same answer
but it should be copy paste okk
becuase i not wanted repeat my answer
okk
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Right hand screw rule:- Let the first vector be A from where the right hand screw is rotated, and towards the vector B. So the direction in which the right handed screw is rotated gives the direction of C.
Right hand thumb rule:- Here the fingers of the right hand are curled from Vector A to B. Then the direction of erect thumb will give the direction of C.
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