Q. Weakest force in nature is __________

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Q. The relation between the direction of force and the direction of magnetic field is __________

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Q. The relation between the direction of current and the direction of the force is ________

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Q. Which among the following, is the correct expression for force in a current carrying conductor if magnetic field is perpendicular to it?

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Q. When the current in the current carrying conductor increases, what happens to the force in the conductor which is at right angles to the magnetic field?

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Q. When the length of the conductor in the current carrying conductor increases, what happens to the force in the conductor which is at right angles to the magnetic field?

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Q. When the magnetic field intensity in the current carrying conductor increases, what happens to the force in the conductor which is at right angles to the magnetic field?

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Q. The unit for force in a current carrying conductor is _________

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Q. If net force is zero on a particle in magnetic field what is relation between velocity and magnetic field?

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Q. If the intensity of the magnetic field is 100T, the length of the conductor is 10m and the magnitude of force perpendicular to the magnetic field is 10kN, calculate the current in the conductor.

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Q. If the intensity of the magnetic field perpendicular to current carrying conductor is 100T, the length of the conductor is 3m and the current in the conductor is 10A, calculate the magnitude of force perpendicular to the electric field.

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Q. Force in current carrying conductor placed in magnetic field is ___________ of il and B.

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Q. An E.M.F. can be induced by _________

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Q. What happens to the current in a coil while accelerating a magnet inside it?

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Q. What is the consequence of motor effect?

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Q. The total number of magnetic field lines passing through an area is termed as?

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Q. The formula for induced emf if magnetic field, length and velocity of conductor all are mutually perpendicular is __________

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Q. If a conductor 0.2m long moves with a velocity of 0.3m/s in a magnetic field of 5T, calculate the emf induced if magnetic field, velocity and length of conductor are mutually perpendicular to each other.

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Q. Find the length of a conductor which is moving with a velocity 0.4m/s in a magnetic field of 8T, inducing an emf of 20V if magnetic field, velocity and length of conductor are mutually perpendicular to each other.

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Q. Find the strength of the magnetic field in a conductor 0.5m long moving with a velocity of 10m/s, inducing an emf of 20V if magnetic field, velocity and length of conductor are mutually perpendicular to each other.

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