Moving Charges and Magnetism questions
775 published questions with worked solutions.
- A galvanometer having a coil resistance of 100 Ω gives a full scale deflection, when a current of 1 mA is passed through it. The...
- When a current of 5 mA is passed through a galvanometer having a coil of resistance 15Ω, it shows full scale deflection. The...
- An electron, a proton and an alpha particle having the same kinetic energy are moving in circular orbits of radii r_e, r_p, r_...
- The dipole moment of a circular loop carrying a current I, is m and the magnetic field at the centre of the loop is B_1. When the...
- A galvanometer with its coil resistance 25 Ω requires a current of 1 mA for its full deflection. In order to construct an ammeter...
- A rectangular coil (Dimension 5 cm × 2.5 cm) with 100 turns, carrying a current of 3 A in the clock-wise direction, is kept...
- A moving coil galvanometer has resistance 50 Ω and it indicates full deflection at 4 mA current. A voltmeter is made using this...
- The magnitude of the magnetic field at the centre of an equilateral triangular loop of side 1 m which is carrying a current of 10...
- A current of 1A is flowing on the sides of an equilateral triangle of side 4.5 10^ -2 m. The magnetic field at the center of the...
- A moving coil galvanometer has a coil with 175 turns and area 1 cm^2. It uses a torsion band of torsion constant 10^ -6 N-m/rad....
- The resistance of a galvanometer is 50 ohm and the maximum current which can be passed through it is 0.002 A. What resistance...
- A proton, an electron, and a helium nucleus, have the same energy. They are in circular orbits in a plane due to magnetic field...
- A particle having the same charge as of electron moves in a circular path of radius 0.5 cm under the influence of a magnetic...
- A bar magnet is demagnetized by inserting it inside a solenoid of length 0.2 m, 100 turns, and carrying a current of 5.2 A. The...
- A thin ring of 10 cm radius carries a uniformly distributed charge. The ring rotates at a constant angular speed of 40π rad s^ -1...
- A galvanometer, whose resistance is 50 ohm, has 25 divisions in it. When a current of 4 10^ -4 A passes through it, its needle...
- In an experiment, electrons are accelerated, from rest, by applying a voltage of 500 V. Calculate the radius of the path if a...
- A moving coil galvanometer, having a resistance G, produces full scale deflection when a current I_g flows through it. This...
- A particle of mass m and charge q has an initial velocity v =v_0 j . If an electric field E =E_0 i and magnetic field B =B_0 i...
- A small circular loop of conducting wire has radius a and carries current I. It is placed in a uniform magnetic field B...
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