Magnetic Effects of Current
Magnetic field, Oersted experiment, solenoid, electromagnetic induction, AC vs DC.
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5 practice questions for SZF IOS with instant answers — no signup, ~3 minutes.
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పూర్తి మాక్ తీసుకోండి →Q1 · Magnetic Effects of Current · EASY
A current-carrying straight conductor produces a magnetic field around it. According to Oersted's experiment, if the direction of current in the conductor is reversed, what happens to the direction of the magnetic field lines around it?
Q2 · Magnetic Effects of Current · MEDIUM
A solenoid of 500 turns carries a current of 2 A. If the length of the solenoid is 0.5 m, what is the approximate magnetic field at the center of the solenoid? (Take permeability of free space = 4π × 10^-7 T·m/A)
Q3 · Magnetic Effects of Current · HARD
A coil of 100 turns with area 0.02 m² is placed perpendicular to a magnetic field. The magnetic field changes uniformly from 0.5 T to 0.1 T in 0.2 seconds. What is the magnitude of the induced EMF in the coil according to Faraday's law of electromagnetic induction?
Q4 · Magnetic Effects of Current · MEDIUM
A current-carrying straight conductor is placed in a uniform magnetic field such that the current flows perpendicular to the direction of the magnetic field. If the current through the conductor is 3 A and the magnetic field strength is 0.4 T, what is the magnitude of the force per unit length acting on the conductor?
Q5 · Magnetic Effects of Current · HARD
Fleming's left-hand rule is used to determine the direction of which of the following?