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Two equal negative charges –q are fixed at points (o, a) and (o, –a). A positive charge Q is released from rest at the point (2a, o) on the X - axis. The charge Q will

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Charges of `+ 10/3xx10^(-19) C` are placed at each of the four corners of a square of side 8cm. The potential at the intersection of the diagonals is

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Three charges 2q, –q, –q are located at the vertices of an equilateral triangle. At the centre of the

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Find out impedance of given

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In LCR circuit with an AC source `R = 300Omega, C = 20 muF, L = 1.0 H, E_('rms')=50V and f = 50'/'piHz`. Find RMS current in the

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For the circuit shown, which of the following statement(s) is(are)

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Two long and parallel straight wires A and B carrying currents of 8.0 A and 5.0 A in the same direction are separated by a distance of 4.0 cm. Estimate the force on a 10 cm section of wire

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Answer the following questions: An electron travelling west to east enters a chamber having a uniform electrostatic field in north to south direction. Specify the direction in which a uniform magnetic field should be set up to prevent the electron from deflecting from its straight line

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A uniform magnetic field of 3000 G is established along the positive z-direction. A rectangular loop of sides 10 cm and 5 cm carries a current of 12 A. What is the torque on the loop in the different cases shown in Fig. What is the force on each case? Which case corresponds to stable

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Answer the following questions: The charged currents in the outer conducting regions of the earth’s core are thought to be responsible for earth’s magnetism. What might be the ‘battery’ (i.e., the source of energy) to sustain these

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The primary origin(s) of magnetism lies

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A proton has spin and magnetic moment just like an electron. Why then its effect is neglected in magnetism of

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Use (a) the Ampere’s law for H and (b) continuity of lines of B, to conclude that inside a bar magnet, lines of B must run from the S pole to N

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

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Assume the dipole model for earth’s magnetic field B which is given by BV = vertical component of magnetic field = `μ_0 /(4π) (2mcosθ )/r^3 ` BH = Horizontal component of magnetic field = `μ_0 /(4π) (sinθm)/r^3 ` θ = 90° – lattitude as measured from magnetic equator. Find loci of points for which

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Consider a wire carrying a steady current, I placed in a uniform magnetic field B perpendicular to its length. Consider the charges inside the wire. It is known that magnetic forces do no work. This implies

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A charged particle would continue to move with a constant velocityin a region

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A current carrying loop consists of 3 identical quarter circles of radius R, lying in the positive quadrants of the x-y, y-z and z-x planes with their centres at the origin, joined together. Find the direction and magnitude of B at the

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A charged particle of charge e and mass m is moving in an electric field E and magnetic field B. Construct dimensionless quantities and quantities of dimension [T

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The strength of the magnetic field at a point y near a long straight current carrying wire is B. The field at a distance y/2 will

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If the strangth of the magnetic field produced at 10 cm away from a infinilely long straight conductor is `10^(-5)` tesla. The value of the current flowing in the conductor will be...............

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

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