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A tightly- wound, long solenoid is kept ...

A tightly- wound, long solenoid is kept with its axis parallel to a large metal sheet carrying a surface current. The surgace current through a width dl of the sheet is Kdl and the number of turns per unit length of the solenoid is n. The magnetic field near the centre of the solenoid is found to be zero. (a) find the current in the solenoid. (b) If the solenoid is rotated to make its axis perpendicular to the metal sheet, what would be the magnitude of the magnetic field near its centre?

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RESONANCE ENGLISH-ELECTRODYNAMICS-Exercise-1 PART-1
  1. The magnetic field B inside a long solenoid, carrying a current of 5.0...

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  2. A copper wire having resistance 0.01 ohm in each metre is used to wind...

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  3. A tightly- wound, long solenoid is kept with its axis parallel to a la...

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  4. Two large metal sheets carry surface currents as shown in figure . The...

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  5. A charged particle is accelerated thrught a potential difference of 12...

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  6. A neutron, proton, an electron an alpha-particle enter a region of con...

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  7. In the formula X=3YZ^(2), X and Z have dimension of capacitance and ma...

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  8. Two long parallel wires carrying current 2.5 A and I in the same direc...

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  9. An alpha-particle is accelerated by a potential difference of 10^4 V. ...

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  10. A magnetic field of (4.0xx10^-3hatk)T exerts a force (4.0hati+3.0hatj)...

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  11. A charged particle projected in a magnetic field B=(3hati+4hatj)xx10...

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  12. A particle having a charge of 2.0X10^(-8) C and a mass of 2.0X10^(-10...

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  13. A proton describes a circle of radius 1 cm in a magnetic field of stre...

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  14. An electron having a kinetic energy of 100eV circulates in a path of r...

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  15. A proton is projected with a velocity of 3X10^6 m s ^(-1) perpendicula...

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  16. (a) An electron moves along a circle of radius 1m in a perpendicular m...

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  17. A particle of mass m and positive charge q, moving with a uniform velo...

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  18. A particle of mass m and charge q is projected into a region having ...

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  19. Figure shows a convex lens of focal length 10cm lying in a uniform mag...

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  20. If two charged particles of same mass and charge are describing circle...

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