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The torque on a rectangular coil placed in a uniform magnetic field is large when the
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Important Questions on Magnetic Effects of Electric Current and Magnetism
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Consider the following statements
I. If a piece of bar magnet is broken into two equally long pieces, then the pieces will not lose the magnetic properties.
II. Magnetic properties of a substance lie at the atomic level.
Which of the statement(s) given above is/are correct?
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The polarity of an unmarked horse-shoe magnet can be determined by using
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The earth's magnetic field is approximately
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A positively charged particle projected towards the west is deflected towards North by a magnetic field. The direction of the magnetic field is
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A current-carrying wire is known to produce magnetic lines of force around the conducting straight wire. The direction of the lines of force may be described by :
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Gravitational force shares a common feature with electromagnetic force. In both cases, the force is
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The motion of an electron in presence of a magnetic field is depicted in the figure given above. The force acting on the electron will be directed
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Imagine a current carrying wire with the direction of current downward or into the page. The direction of magnetic field lines is :
