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Electric Current and CircuitsQuestion and Answers: Page 4

Question Number 36548    Answers: 1   Comments: 0

Question Number 36529    Answers: 2   Comments: 0

$$\mathrm{A}\:\mathrm{fuse}\:\mathrm{with}\:\mathrm{a}\:\mathrm{circular}\:\mathrm{cross}−\mathrm{sectional} \\ $$$$\mathrm{radius}\:\mathrm{of}\:\mathrm{0}.\mathrm{15}\:\mathrm{mm}\:\mathrm{blows}\:\mathrm{at}\:\mathrm{15A}.\:\mathrm{What} \\ $$$$\mathrm{should}\:\mathrm{be}\:\mathrm{the}\:\mathrm{radius}\:\mathrm{of}\:\mathrm{the}\:\mathrm{cross}\:\mathrm{section} \\ $$$$\mathrm{of}\:\mathrm{a}\:\mathrm{fuse}\:\mathrm{made}\:\mathrm{of}\:\mathrm{same}\:\mathrm{material}\:\mathrm{that} \\ $$$$\mathrm{blows}\:\mathrm{at}\:\mathrm{30A}? \\ $$

Question Number 36279    Answers: 1   Comments: 0

$${Consider}\:{a}\:{particle}\:{in}\:{a}\: \\ $$$${uniformly}\:{charge}\:{electric}\:{field}, \\ $$$${if}\:{the}\:{particle}\:{has}\:{a}\:{charge}\:{of}\:\mathrm{2}{C} \\ $$$${and}\:{is}\:{place}\:\mathrm{3}{m}\:{away}\:{from}\:{the} \\ $$$${charge}\:{plate}. \\ $$$$\boldsymbol{{calculate}}\:\boldsymbol{{the}}\:\boldsymbol{{work}}\:\boldsymbol{{needed}}\:\boldsymbol{{to}} \\ $$$$\boldsymbol{{move}}\:\boldsymbol{{the}}\:\mathrm{2}\boldsymbol{{C}}\:\boldsymbol{{particle}}\:\boldsymbol{{to}}\:\boldsymbol{{a}} \\ $$$$\boldsymbol{{distance}}\:\boldsymbol{{of}}\:\mathrm{1}\boldsymbol{{m}}\:\boldsymbol{{from}}\:\boldsymbol{{the}}\: \\ $$$$\boldsymbol{{plate}}. \\ $$

Question Number 36227    Answers: 1   Comments: 0

$$\mathrm{1}×\mathrm{10}^{\mathrm{7}\:} {electrons}\:{pass}\:{through}\:{a}\: \\ $$$${conductor}\:{in}\:\mathrm{1}.\mathrm{0}\mu{s}.{Find}\:{the}\: \\ $$$${current}\:{in}\:{Amperes}\:{flowing} \\ $$$${through}\:{the}\:{conductor}. \\ $$$${electronic}\:{charge}=\mathrm{1}.\mathrm{6}×\mathrm{10}^{−\mathrm{19}} {C} \\ $$

Question Number 36140    Answers: 1   Comments: 1

Question Number 35507    Answers: 0   Comments: 3

Question Number 35502    Answers: 0   Comments: 3

Question Number 35496    Answers: 1   Comments: 1

Question Number 35493    Answers: 0   Comments: 2

Question Number 34954    Answers: 1   Comments: 1

Question Number 34617    Answers: 2   Comments: 2

Question Number 34587    Answers: 2   Comments: 1

Question Number 31740    Answers: 1   Comments: 0

$$\boldsymbol{\mathcal{C}{onsider}}\:\boldsymbol{{a}}\:\boldsymbol{{particle}}\:\boldsymbol{{in}}\:\boldsymbol{{a}}\:\boldsymbol{{uniform}} \\ $$$$\boldsymbol{{charge}}\:\boldsymbol{{electric}}\:\boldsymbol{{field}}.\boldsymbol{{If}}\:\boldsymbol{{the}} \\ $$$$\boldsymbol{{particle}}\:\boldsymbol{{has}}\:\boldsymbol{{a}}\:\boldsymbol{{charge}}\:\boldsymbol{{of}}\:\:\mathrm{2}\boldsymbol{{C}} \\ $$$$\boldsymbol{{an}}\:\boldsymbol{{is}}\:\boldsymbol{{placed}}\:\mathrm{3}\boldsymbol{{m}}\:\boldsymbol{{away}}\:\boldsymbol{{from}} \\ $$$$\boldsymbol{{the}}\:\boldsymbol{{charge}}\:\boldsymbol{{flate}}. \\ $$$$\boldsymbol{{Calculate}}\:\boldsymbol{{the}}\:\boldsymbol{{work}}\:\boldsymbol{{needed}} \\ $$$$\boldsymbol{{to}}\:\boldsymbol{{move}}\:\boldsymbol{{the}}\:\mathrm{2}\boldsymbol{{C}}\:\boldsymbol{{particle}} \\ $$$$\boldsymbol{{to}}\:\boldsymbol{{a}}\:\boldsymbol{{distance}}\:\boldsymbol{{of}}\:\mathrm{1}\boldsymbol{{m}}\:\boldsymbol{{from}}\:\boldsymbol{{the}} \\ $$$$\boldsymbol{{plate}}. \\ $$$$ \\ $$$$\boldsymbol{{Plzz}}\:\boldsymbol{{help}} \\ $$$$ \\ $$

Question Number 28373    Answers: 1   Comments: 0

$${What}\:{is}\:{the}\:{implication}\:{of} \\ $$$${connecting}\:{a}\:{low}\:{resistance}\:{in}\: \\ $$$${series}\:{to}\:{a}\:{galvanometer}? \\ $$

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