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A beam of protons is moving horizontally towards you. As it approaches, it passes through a magnetic field directed downward. The beam deflects

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Important Questions on Moving Charges and Magnetism

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Gamma Question Bank for Engineering Physics>Chapter 18 - Moving Charges and Magnetism>Assignment>Q 33

There is a magnetic field acting in a plane perpendicular to this sheet of paper, downward into the paper as shown in the figure. Particles in vacuum move in the plane of the paper from left to right. The path indicated by the arrow could be travelled by

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Gamma Question Bank for Engineering Physics>Chapter 18 - Moving Charges and Magnetism>Assignment>Q 34
Doubly ionized oxygen atoms O2- and singly-ionized lithium atoms Li+ are travelling with the same speed, perpendicular to a uniform magnetic field. The relative atomic masses of oxygen and lithium are 16 and 7 respectively. The ratio  radius of O2- orbit  radius of Li+orbit  is
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Gamma Question Bank for Engineering Physics>Chapter 18 - Moving Charges and Magnetism>Assignment>Q 35
A charged particle of mass m is moving with a speed u in a circle of radius r. If the magnetic field induction at the centre is B, the charge on the particle is
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Gamma Question Bank for Engineering Physics>Chapter 18 - Moving Charges and Magnetism>Assignment>Q 36

In a region of space, both electric and magnetic field are present simultaneously in opposite directions. A positively charged particle is projected with certain speed an angle θ<90° with magnetic field. It will move in a

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Gamma Question Bank for Engineering Physics>Chapter 18 - Moving Charges and Magnetism>Assignment>Q 37
An electron is fired parallel to uniform electric and uniform magnetic field acting simultaneously and in the same direction. The electron
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Gamma Question Bank for Engineering Physics>Chapter 18 - Moving Charges and Magnetism>Assignment>Q 38
Due to the flow of current in a circular loop of radius R, the magnetic induction produced at the centre of the loop is B. The magnetic moment of the loop is μ0= permeability constant)
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Gamma Question Bank for Engineering Physics>Chapter 18 - Moving Charges and Magnetism>Assignment>Q 39
A rectangular coil 20 cm×20 cm has 100 turns and carries a current of 1 A. It is placed in a uniform magnetic field B=0.5 T with the direction of magnetic field parallel to the plane of the coil. The magnitude of the torque required to hold this coil in this position is
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Gamma Question Bank for Engineering Physics>Chapter 18 - Moving Charges and Magnetism>Assignment>Q 40
A length I of a wire is bent to form a circular coil of some turns. A current i is then established in the coil and it is placed in a uniform magnetic field B. The maximum torque that acts on the coil is