200 Puzzling Physics Problems: With Hints and Solutions by P. Gnädig, G. Honyek, K. F. Riley

By P. Gnädig, G. Honyek, K. F. Riley

This publication will improve a student's snatch of the legislation of physics via using them to functional occasions, and difficulties that yield extra simply to intuitive perception than brute-force equipment and intricate arithmetic. those fascinating difficulties, selected nearly solely from classical (non-quantum) physics, are posed in available non-technical language requiring the coed to choose the precise framework during which to examine the location and choose which branches of physics are concerned. the extent of class had to take on many of the 200 difficulties is that of the outstanding institution scholar, the nice undergraduate, or useful graduate pupil. The booklet should be invaluable to undergraduates getting ready for 'general physics' papers. it truly is was hoping that even a few physics professors will locate the more challenging questions difficult. in contrast, mathematical calls for are minimum, and don't transcend trouble-free calculus. This fascinating e-book of physics difficulties should still end up instructive, not easy and enjoyable.

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Extra resources for 200 Puzzling Physics Problems: With Hints and Solutions

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A metal sphere, of radius R and cut in two along a plane whose minimum distance from the sphere's centre is h, is uniformly charged by a total electric charge Q. What force is necessary to hold the two parts of the sphere together? P113• P114 A small positively charged ball of mass m is suspended by an insulating thread of negligible mass. Another positively charged small ball is moved very slowly from a large distance until it is in the original position of the first ball. As a result, the first ball rises by h.

The axis of symmetry of the ring is the same to that of the rod. The cylindrically symmetrical magnetic field around the ring can be described approximately in terms of the vertical and radial components of the magnetic field vector as Bz = Bo( 1-IXz) and B, = B0 [3r, where B0 , IX and [3 are constants, and z and r are the vertical and radial position coordinates, respectively. B, Problems 45 Initially, the ring has no current flowing in it. When released, it starts to move downwards with its axis still vertical.

In fact they attempted to decide between the two possibilities by measuring the oscillation period of a magnetic needle as a function of the 'V' opening angle. However, for a range of e values, the predicted differences were too small to be measured. (i) Which formula might be correct? (ii) Find the proportionality factor in this formula and guess the most likely factor appearing in the other one. P120** A direct current flows in a solenoid of length L and radius R, (L ~ R), producing a magnetic field of magnitude Bo inside the solenoid.

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