{"id":1623,"date":"2023-04-17T10:00:35","date_gmt":"2023-04-17T04:30:35","guid":{"rendered":"https:\/\/www.aplustopper.com\/?p=1623"},"modified":"2023-04-18T10:03:07","modified_gmt":"2023-04-18T04:33:07","slug":"meaning-of-magnetic-force","status":"publish","type":"post","link":"https:\/\/www.aplustopper.com\/meaning-of-magnetic-force\/","title":{"rendered":"What is the Meaning of Magnetic Force"},"content":{"rendered":"

What is the Meaning of Magnetic Force<\/span><\/h2>\n

Force on a Current Carrying Wire due to\u00a0 Magnetic Field :<\/strong><\/span>
\nIntroduction :<\/strong><\/span> A current carrying conductor produces a magnetic field around it. When it is placed in a magnetic field, the two magnetic fields interact. A force acts on the conductor.
\n\"Meaning
\nExpression :<\/strong><\/span> It is found by calculation that if the conductor of, length l be carrying a current I lying inside a magnetic field of intensity B and making an angle q with it, the force acting on it is given by<\/p>\n

F = I?B sin \u03b8<\/p>\n

Fleming\u2019s Left\u2013Hand Rule :<\/strong><\/span>
\n\"Meaning
\nFleming\u2019s left\u2013hand rule is used to find out the direction of motion of a current\u2013carrying conductor when placed in a magnetic field. This rule states as follows.<\/p>\n

Stretch out the thumb, the forefinger, and the second (middle) finger of the left hand so that these are at right angles to each other. If the forefinger gives the direction of the magnetic field (N to S), the second (middle) finger\u00a0 the direction of current (+ to \u2013), then the thumb gives the direction of the force acting on the conductor.<\/p>\n

Since the conductor will move in the direction of the force acting on it hence the thumb gives the direction of motion of the conductor.<\/p>\n

Force on a moving charge<\/strong><\/span>
\nA current carrying conductor (e.g., a wire) experiences a force when placed in a magnetic field. The current represents a collection of charged particles in motion. Therefore, each moving charged particle in a magnetic field will also experience a force, called Lorenz force<\/strong>.
\nThe direction of the force experienced by a positive charge is the same as that on the current and is given by Fleming\u2019s left-hand rule.
\nThe force, experienced by a current carrying conductor in a magnetic field is given by,
\nF = B I ?
\nIf Q is the charge passed through the conductor in time t, we can write<\/p>\n\\(I=\\frac { Q }{ t } \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\\)\n

The above relationships, when combined give,<\/p>\n\\(F=\\frac { BQl }{ t } =BQv \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\\)\n

where v is the velocity of the charged particle perpendicular to the direction of the field<\/p>\n

People also ask<\/strong><\/p>\n