If the angle between moving charge and magnetic field is 0, the magnetic force acting on the charge is given by …………….
A) qvB
B) qvBcosθ
C) qvB. \(\frac{1}{sin\,θ}\)
D) qvB tanθ
1 Answers
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A magnetic needle kept nonparallel to the magnetic field in a nonuniform magnetic field experiences
Correct answer is (C) both a force and a torque
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The relation among angle of incidence (i1) angle of emergence (i1) angle of deviation (d) and angle of prism (A)
C) A + d = i1 + i2
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The equation for magnetic force on charge q when there is an angle “9” between the direction of field B and velocity V is ………………….
B) F = Bqv sinθ
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The equation for magnetic force on charge ‘q’ moving perpendicular to the magnetic field is
Correct option is A) F = Bqv
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The equation for magnetic force on a current carrying wire of length T/ which makes an angle ‘θ’ with the magnetic field is ……………….
B) F = BIL sinθ
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The charge is moving along the direction of magnetic field. Then force acting on it is ………………..
Correct option is A) 0
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A charge ‘q’ is moving with a velocity ‘v’ in magnetic field of induction B. If the magnetic force acting on charge ‘q’ is equal to qvB, then ………………….
B) ‘q’ is moving perpendicular to B
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How do we determine strength of magnetic field at a given point due to a magnet? Write down units of magnetic field in SI and CGS system
i. Density of lines of force i.e., the number of lines of force per unit area around a particular point determines the strength of the magnetic field at that point. ii....
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The centripetal force acting on a body of mass m moving with speed v along a circular path of radius r is given by `F = (mv^(2))/(r)` If the values of
Correct Answer - `3.6 %`
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A bar magnet of length `10cm` and pole strength `2 Am` makes an angle `60^(0)` with a uniform magnetic field of induction `50T`. The couple acting on
Correct Answer - A `C=MB sin theta`
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