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An electronand a proton are moving under the influence of mutual forces . In calculating the change in the kineticenergy of the system during motion , one ignores the magnetic force of one on another . This is , because |
Answer» <html><body><p>the <a href="https://interviewquestions.tuteehub.com/tag/two-714195" style="font-weight:bold;" target="_blank" title="Click to know more about TWO">TWO</a> <a href="https://interviewquestions.tuteehub.com/tag/magnetic-551115" style="font-weight:bold;" target="_blank" title="Click to know more about MAGNETIC">MAGNETIC</a> <a href="https://interviewquestions.tuteehub.com/tag/forces-16875" style="font-weight:bold;" target="_blank" title="Click to know more about FORCES">FORCES</a> are equal and opposite ,so they produce no net effect<br/>the magnetic forces do not <a href="https://interviewquestions.tuteehub.com/tag/work-20377" style="font-weight:bold;" target="_blank" title="Click to know more about WORK">WORK</a> on each particle <br/>the magnetic forces do equal and opposite (but non -zero) work on each particle .<br/>the magnetic forces are necessarily negligible .</p>Solution :When electron and proton are moving under influence of their mutual forces , the magnetic forces are perpendicular to tem hence work done by these forces is zero .</body></html> | |