Questions by varun

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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

asked Mar 20, 2022 in 12th Physics

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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

asked Mar 20, 2022 in 12th Physics

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Consider the plane S formed by the dipole axis and the axis of earth. Let P be point on the magnetic equator and in S. Let Q be the point of intersection of the geographical and magnetic equators. Obtain the declination and dip angles at P and

asked Mar 20, 2022 in 12th Physics

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There are two current carrying planar coils made each from identical wires of length L. C1 is circular (radius R ) and C2 is square (side a). They are so constructed that they have same frequency of oscillation when they are placed in the same uniform B and carry the same current. Find a in terms of

asked Mar 20, 2022 in 12th Physics

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Two charged particles traverse identical helical paths in a completely opposite sense in a uniform magnetic field B = `B_0

asked Mar 20, 2022 in 12th Physics

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Biot-Savart law indicates that the moving electrons (velocity v) produce a magnetic field B such

asked Mar 20, 2022 in 12th Physics

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A current carrying circular loop of radius R is placed in the x-y plane with centre at the origin. Half of the loop with x > 0 is now bent so that it now lies in the y-z

asked Mar 20, 2022 in 12th Physics

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An electron is projected with uniform velocity along the axis of a current carrying long solenoid. Which of the following is

asked Mar 20, 2022 in 12th Physics

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In a cyclotron, a charged

asked Mar 20, 2022 in 12th Physics

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A circular current loop of magnetic moment M is in an arbitrary orientation in an external magnetic field B. The work done to rotate the loop by 30° about an axis perpendicular to its plane

asked Mar 20, 2022 in 12th Physics

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The gyro-magnetic ratio of an electron in an H-atom, according to Bohr model,

asked Mar 20, 2022 in 12th Physics

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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

asked Mar 20, 2022 in 12th Physics

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Two identical current carrying coaxial loops, carry current I in an opposite sense. A simple amperian loop passes through both of them once. Calling the loop as

asked Mar 20, 2022 in 12th Physics

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A cubical region of space is filled with some uniform electric and magnetic fields. An electron enters the cube across one of its faces with velocity v and a positron enters via opposite face with velocity- v. At this

asked Mar 20, 2022 in 12th Physics

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

asked Mar 20, 2022 in 12th Physics

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Verify that the cyclotron frequency ω = eB/m has the correct dimensions of

asked Mar 20, 2022 in 12th Physics

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Show that a force that does no work must be a velocity dependent

asked Mar 20, 2022 in 12th Physics

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The magnetic force depends on v which depends on the inertial frame of reference. Does then the magnetic force differ from inertial frame to frame? Is it reasonable that the net acceleration has a different value in different frames of

asked Mar 20, 2022 in 12th Physics

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Describe the motion of a charged particle in a cyclotron if the frequency of the radio frequency (rf) field were

asked Mar 20, 2022 in 12th Physics

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Two long wires carrying current I1 and I2 are arranged as shown in Fig. The one carrying current I1 is along is the x-axis. The other carrying current I2 is along a line parallel to the y-axis given by x = 0 and z = d. Find the force exerted at O2 because of the wire along the x-axis.

asked Mar 20, 2022 in 12th Physics

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