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The dimensions of magnetic induction are,

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Important Questions on Magnetic Effect of Electric Current

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A horizontal conducting wire of length 0.1 m carries a current of 4 A. If mass of the wire is 7.5×10-5 kg and g=10 m s-2, the uniform magnetic induction required to support the weight of the wire is,

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A rectangular loop is acted upon by two forces of same magnitude but opposite directions. The net force acting on the loop is,
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A uniform conducting wire ABC has a mass of 10 g. A current of 2 A flows through it. The wire is kept in a uniform magnetic field B=2 T. The acceleration of the wire will be,

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A horizontal rod of mass 10 g and length 10 cm is placed on a smooth plane inclined at an angle of 60° with the horizontal, with the length of the rod parallel to the edge of the inclined plane. A uniform magnetic field of induction B is applied vertically downwards. If the current through the rod is 1.73 A, then the value of B for which the rod remains stationary on the inclined plane is,
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A loop of flexible conducting wire lies in a magnetic field of 2.0 T with its plane perpendicular to the field. The length of the wire is 1 m. When a current of 1.1 A is passed through the loop, it opens into a circle, then the tension developed in the wire is,
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A conductor in the form of a right angle ΔABC with AB=3 cm and BC=4 cm carries a current of 10 A. There is a uniform magnetic field of 5 T perpendicular to the plane of the conductor. The force on the conductor will be AC,
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A metallic rod of mass per unit length 0.5 kg m-1 is lying horizontally on a smooth inclined plane which makes an angle of 30° with the horizontal. The rod is not allowed to slide down by flowing a current through it when a magnetic field of induction 0.25 T is acting on it in the vertical direction. The current flowing in the rod to keep it stationary is
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A conductor lies along the z-axis at -1.5 mz<1.5 m and carries a fixed current of 10.0 A in -a^z direction (see figure). For a field B=3.0×10-4e-0.2xa^y T, find the power required to move the conductor at constant speed to x=2.0 m, y=0 m in 5×10-3 s. Assume parallel motion along the x-axis

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