Q1PhysicsUnit 13: Magnetic Effects of Current and Magnetism
Alnico is used for making permanent
magnets because it has
Physics · JEE
Para-, dia- and ferromagnetic substances with examples, the effect of temperature on magnetic properties Previous Year Questions for JEE
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Q2PhysicsUnit 13: Magnetic Effects of Current and Magnetism
Assertion (A): To protect any
instrument from external magnetic field, it is put inside an iron box Reason (R) : Iron is a ferromagnetic
substance
Q3PhysicsUnit 13: Magnetic Effects of Current and Magnetism
The B-H curve (i) and (ii) shown in fig.,
associated with
Q4PhysicsUnit 13: Magnetic Effects of Current and Magnetism
The temperature at which the domain
structure gets destroyed and ferromagnetic substance is converted into paramagnetic substance is called
as
Q5PhysicsUnit 13: Magnetic Effects of Current and Magnetism
According to Curie's law, the magnetic susceptibility of a substance
at an absolute temperature T is proportional to -
Q6PhysicsUnit 13: Magnetic Effects of Current and Magnetism
Which of the following property shows the property of ferromagnetic
substances?
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Our bank includes exam-style MCQs aligned with JEE Main Physics syllabus for Para-, dia- and ferromagnetic substances with examples, the effect of temperature on magnetic properties, covering the same topics as previous year papers.
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Notes & Formulas
Biot Savart law and its application to the current carrying circular loop
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Ampere's law and its applications to infinitely long current carrying straight wire and solenoid
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Force on a moving charge in uniform magnetic and electric fields
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Force on a current-carrying conductor in a uniform magnetic field
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The force between two parallel currents carrying conductors-definition of ampere
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Torque experienced by a current loop in a uniform magnetic field: Moving coil galvanometer, its sensitivity and conversion to ammeter and voltmeter
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Current loop as a magnetic dipole and its magnetic dipole moment, bar magnet as an equivalent solenoid, magnetic field lines
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