Question
Download Solution PDFThe direction of a force in a current-carrying conductor can be determined using:
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDF- Whenever a current-carrying conductor is placed in a magnetic field, the conductor experiences a force which is perpendicular to both the magnetic field and the direction of the current.
- According to Fleming's left-hand rule, if the thumb, forefinger and middle finger of the left hand are stretched to be perpendicular and if the forefinger represents the direction of the magnetic field, the middle finger represents the direction of the current, then the thumb represents the direction of a force.
- According to Fleming's right-hand rule, if the forefinger, thumb, and the central finger of the right hand are kept perpendicular to each other, such that the thumb points in the direction of motion of the conductor and the forefinger points in the direction of the magnetic field, then the central finger points in the direction of the induced current.
- This rule is used to determine the direction of flow of induced current in a conductor that is moved inside a magnetic field in a direction perpendicular to the direction of the magnetic field, this can be done when the direction of motion of the conductor and the direction of a magnetic field is known.
- Faraday’s first law of electromagnetic induction states that whenever a conductor is placed in a varying magnetic field, emf is induced which is called induced emf. If the conductor circuit is closed, the current will also circulate through the circuit and this current is called induced current.
- Faraday's second law of electromagnetic induction states that the magnitude of emf induced in the coil is equal to the rate of change of flux that linkages with the coil. The flux linkage of the coil is the product of the number of turns in the coil and flux associated with the coil.
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