18-Moving charges and magnetism

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How to prepare for Moving charges and magnetism for JEE Mains
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shashankChem
Plasma
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anshu@
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anshu@
Moving charge and magnetism
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Help me in this question.
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What will be net force before slightly rotating and after rotating on loop?
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What is the magnetic force on AB acting with explanation.
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Does always a current carrying loop act as magnet or only for points at x (x>>R) ? Please tell in hinglish.
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Utkarsh Ranjan
How to find the theta using geometry
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Write the expression for magnetic field at a point due to long straight current carrying conductor and explain the terms ?
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Write the expression for magnetic field at a point due to current element and explain the terms ?
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Sudha kunjeti
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A charged particle move perpendicular to a magnetic field of 0.5 T with a speed of $10^6$ m/s. If its charge to mass ratio (q/m) = ..... ?
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doubt in magnetism question
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magnetic pressure
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When we move in magnetic compass from point P to Q then which of the following statement is true ?
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Why a galvanometer can't be used directly as ammeter ?
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A rigid square loop of side a, carrying a current I2, lies on a horizontal surface near a long, straight wire carrying a current I1. Both the loop ..?
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A square loop is carrying a steady current I and the magnitude of its magnetic dipole moment is m. If this square loop is changed to a circular ...?
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A proton, an electron, and a helium nucleus have the same energy. They are in circular orbits in a plane due to a magnetic field perpendicular to ..?
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The resistance of a galvanometer is 50 Ω and the maximum current which can be passed through it is 0.002 A. What resistance must be connected ..?
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A moving coil galvanometer has a coil with 175 turns and area 1 cm². It uses a torsion band of torsion constant 10-6 N-m/rad. The coil is placed ..?
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