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Category: Electrostatics

At-each-of-three-corners-of-a-square-of-side-2cm-is-placed-a-point-charge-of-magnitude-3-C-What-will-be-the-magnitude-and-direction-of-the-resultant-force-on-a-point-charge-1-C-if-it-were-placed-

Question Number 46374 by Umar last updated on 24/Oct/18 $${At}\:{each}\:{of}\:{three}\:{corners}\:{of}\:{a}\:{square}\: \\ $$$${of}\:{side}\:\mathrm{2}{cm}\:{is}\:{placed}\:{a}\:{point}\:{charge}\: \\ $$$${of}\:{magnitude}\:\mathrm{3}\mu{C}. \\ $$$${What}\:{will}\:{be}\:{the}\:{magnitude}\:{and}\: \\ $$$${direction}\:{of}\:{the}\:{resultant}\:{force}\:{on}\:{a} \\ $$$${point}\:{charge}\:−\mathrm{1}\mu{C}\:{if}\:{it}\:{were}\:{placed} \\ $$$$\:\:\:\left({a}\right)\:\:{at}\:{the}\:{centre}\:{of}\:{the}\:{square}? \\ $$$$\:\:\:\left({b}\right)\:\:{at}\:{the}\:{vacant}\:{corner}\:{of}\:{the}\:{sqre}? \\…

A-ve-point-charge-of-magnitude-q-is-located-on-the-y-axis-at-a-point-of-y-d-and-another-ve-charge-of-same-magnitude-is-located-on-the-point-y-d-A-third-ve-charge-of-same-magnitude-is-located-

Question Number 46292 by Umar last updated on 23/Oct/18 $${A}\:+{ve}\:{point}\:{charge}\:{of}\:{magnitude}\:{q}\:{is}\:{located}\:{on}\:{the}\:{y}−{axis}\: \\ $$$${at}\:{a}\:{point}\:{of}\:{y}=+{d}\:{and}\:{another}\:−{ve}\:\:{charge}\:{of}\:{same}\:{magnitude} \\ $$$${is}\:{located}\:{on}\:{the}\:{point}\:{y}=−{d}.\: \\ $$$${A}\:{third}\:+{ve}\:{charge}\:{of}\:{same}\:{magnitude}\:{is}\:{located}\: \\ $$$${at}\:{some}\:{point}\:{on}\:{x}−{axis}. \\ $$$$\:\:\:\left(\mathrm{1}\right)−\:{what}\:{is}\:{the}\:{magnitude}\:{and}\:{direction}\:{of}\:{the}\:{force}\:{on} \\ $$$$\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:{third}\:{charge}\:? \\ $$$$\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\left({a}\right)−\:{when}\:{its}\:{located}\:{on}\:{the}\:{origin}. \\…

tan-F-y-F-x-

Question Number 107764 by hhryhrry2 last updated on 12/Aug/20 $$\:\:\:\:\:\:\:\:\:\:\:\:\:\mathrm{tan}\theta\:=\:\:\frac{\Sigma\:\mathrm{F}_{\mathrm{y}} }{\Sigma\:\mathrm{F}_{\mathrm{x}} } \\ $$$$ \\ $$ Commented by ajfour last updated on 12/Aug/20 $$\frac{{d}\bar {{p}}}{{dt}}=\sqrt{\left(\Sigma{F}_{{x}}…

Question-41530

Question Number 41530 by physics last updated on 09/Aug/18 Answered by tanmay.chaudhury50@gmail.com last updated on 09/Aug/18 $${E}=\frac{\lambda}{\mathrm{2}\Pi\epsilon_{\mathrm{0}} {r}_{\bot} }\:\:{E}={electric}\:{field}\:{at}\:{point}\:{which}\:{is}\:{ag} \\ $$$${a}\:{perpedicular}\:{distance}\:{r}_{\bot} \:{from}\:{infinite}\:{charge}\:{rod}= \\ $$$$\lambda={charge}\:{per}\:{unit}\:{length} \\…

An-electric-field-of-2-66KV-m-and-a-magnetic-field-of-1-20T-act-on-a-moving-electron-Calculate-the-speed-of-the-electron-if-the-resultant-force-due-to-both-fields-is-zero-

Question Number 40817 by Necxx last updated on 27/Jul/18 $${An}\:{electric}\:{field}\:{of}\:\mathrm{2}.\mathrm{66}{KV}/{m},{and} \\ $$$${a}\:{magnetic}\:{field}\:{of}\:\mathrm{1}.\mathrm{20}{T},{act}\:{on}\:{a} \\ $$$${moving}\:{electron}.{Calculate}\:{the}\:{speed} \\ $$$${of}\:{the}\:{electron}\:{if}\:{the}\:{resultant}\:{force} \\ $$$${due}\:{to}\:{both}\:{fields}\:{is}\:{zero}. \\ $$$$ \\ $$ Answered by tanmay.chaudhury50@gmail.com…

An-electric-field-of-2-66KV-m-and-a-magnetic-field-of-1-20T-act-on-a-moving-electron-Calculate-the-speed-of-the-electron-if-the-resultant-force-due-to-both-fields-is-zero-

Question Number 40816 by Necxx last updated on 27/Jul/18 $${An}\:{electric}\:{field}\:{of}\:\mathrm{2}.\mathrm{66}{KV}/{m},{and} \\ $$$${a}\:{magnetic}\:{field}\:{of}\:\mathrm{1}.\mathrm{20}{T},{act}\:{on}\:{a} \\ $$$${moving}\:{electron}.{Calculate}\:{the}\:{speed} \\ $$$${of}\:{the}\:{electron}\:{if}\:{the}\:{resultant}\:{force} \\ $$$${due}\:{to}\:{both}\:{fields}\:{is}\:{zero}. \\ $$$$ \\ $$ Terms of Service…

Question-40804

Question Number 40804 by rishabh last updated on 27/Jul/18 Commented by rishabh last updated on 27/Jul/18 $$\mathrm{My}\:\mathrm{question}\:\mathrm{is}\:\mathrm{which}\:\mathrm{approach} \\ $$$$\mathrm{is}\:\mathrm{correct}\:\mathrm{and}\:\mathrm{why}? \\ $$$$\mathrm{book}\:\mathrm{gives}\:\mathrm{solution}\:\mathrm{with}\:\mathrm{approach}\:\mathrm{2}. \\ $$$$\mathrm{What}\:\mathrm{is}\:\mathrm{the}\:\mathrm{mistake}\:\mathrm{in}\:\mathrm{using}\:\mathrm{approach} \\ $$$$\mathrm{1}.…

A-parallel-plate-capacitor-of-plate-spacing-1mm-is-charged-to-a-potential-of-50V-Find-the-energy-density-in-the-capacitor-

Question Number 40786 by Necxx last updated on 27/Jul/18 $${A}\:{parallel}\:{plate}\:{capacitor}\:{of}\:{plate} \\ $$$${spacing},\:\mathrm{1}{mm}\:{is}\:{charged}\:{to}\:{a}\:{potential} \\ $$$${of}\:\mathrm{50}{V}.{Find}\:{the}\:{energy}\:{density}\:{in} \\ $$$${the}\:{capacitor} \\ $$ Answered by tanmay.chaudhury50@gmail.com last updated on 27/Jul/18…