Magnetic Effect of Current

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Magnetic Effect of Current: Overview

This topic covers concepts, such as, Magnetic Effect of Electric Current, Magnetic Field Due to a Current-Carrying Conductor, Magnetic Field Due to Current in a Solenoid & Electromagnet etc.

Important Questions on Magnetic Effect of Current

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According to Right-hand thumb rule, the thumb indicates the direction of

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Magnetic effect of current was discovered by 

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Magnetic effect of current was discovered by

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When electric current is passed through the solenoid, it shows magnetic lines of force similar to a _____.

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Choose the correct option for a current carrying solenoid,the strength of magnetic field  is_________.

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A current-carrying conductor when is placed in a magnetic field, it experiences a _____.

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A cylindrical current carrying coil is called a _____.

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What is the difference between a current carrying solenoid and a bar magnet?

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For a current in a long straight solenoid N-pole and S-pole are created at the two ends. Among the following statements, the incorrect statement is

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Two current-carrying solenoids exhibit: 

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Four metal rods are placed, in turn, inside a coil of copper wire.
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The table below gives the results of the experiment. Which rod would be the most suitable to use for the case of a coil in a circuit breaker?

Meta rod Number of paper clips picket up when there is current in the coil Number of paper clips still attracted when the current is switched off
(a) 1 0
(b) 20 2
(c) 35 0
(d) 35 30

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The material of the core of a strong electromagnet is:

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Mark the polarities of an electromagnet in the figure.

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Why is steel preferred as the core of an electromagnet over soft iron?

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Who among the following discovered that electricity and magnetism are related phenomena?

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Let us take a straight conductor in which the electric current is directed towards the south as seen from the north. The magnetic field for such a current orientation is anti-clockwise.

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In Maxwell's right hand thumb rule, the thumb points in the direction of-

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Oersted was the first person to discover the ______ effect of electric current.

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If we insert a steel rod inside the coil of an electromagnet,