Question Number 37649 by Tinkutara last updated on 16/Jun/18
Answered by Rio Mike last updated on 16/Jun/18
$$\mathrm{yes}\:\mathrm{the}\:\mathrm{answer}\:\mathrm{is}\:\left(\mathrm{C}\right)\:\mathrm{net}\:\mathrm{induced} \\ $$$$\mathrm{charge}\:\mathrm{on}\:\mathrm{the}\:\mathrm{sphere}\:\mathrm{is}\:\mathrm{zero}.\mathrm{If}\:\mathrm{charges} \\ $$$$\mathrm{can}\:\mathrm{neither}\:\mathrm{flow}\:\mathrm{onto}\:\mathrm{or}\:\mathrm{off}\:\mathrm{the}\: \\ $$$$\mathrm{spherical}\:\mathrm{shell}\:\mathrm{the}\:\mathrm{net}\:\mathrm{charge}\:\mathrm{cannot} \\ $$$$\mathrm{change}\left(\mathrm{0}\right). \\ $$$$\mathrm{and}\:\mathrm{also}\:\mathrm{because}\:\mathrm{itcan}\:\mathrm{not}\:\mathrm{acquire}\: \\ $$$$\mathrm{or}\:\mathrm{give}\:\mathrm{up}\:\mathrm{charge}. \\ $$$$ \\ $$
Commented by Tinkutara last updated on 16/Jun/18
Why not b?
Commented by Rio Mike last updated on 16/Jun/18
$$\mathrm{why}\:\mathrm{will}\:\mathrm{you}\:\mathrm{suggest}\:\left(\mathrm{b}\right)? \\ $$
Commented by Rio Mike last updated on 16/Jun/18
$$\mathrm{To}\:\mathrm{my}\:\mathrm{own}\:\mathrm{point}\:\mathrm{of}\:\mathrm{view}\:\mathrm{sir}\: \\ $$$$\mathrm{Tinkutara}\:\mathrm{if}\:\mathrm{the}\:\mathrm{shell}\:\mathrm{can}'\mathrm{t}\:\mathrm{acquire}\:\mathrm{or} \\ $$$$\mathrm{give}\:\mathrm{up}\:\mathrm{charge}\:..\mathrm{net}\:\mathrm{charge}\:\mathrm{cannot}\: \\ $$$$\mathrm{change}..\mathrm{like}\:\mathrm{i}\:\mathrm{said}\:\mathrm{its}\:\mathrm{like}\:\mathrm{a}\:\mathrm{poker}\:\mathrm{game} \\ $$$$…\mathrm{you}\:\mathrm{can}\:\mathrm{play}\:\mathrm{with}\:\mathrm{your}\:\mathrm{friends}, \\ $$$$\mathrm{money}\:\mathrm{can}\:\mathrm{only}\:\mathrm{move}\:\mathrm{around}.\mathrm{some} \\ $$$$\mathrm{of}\:\mathrm{you}\:\mathrm{might}\:\mathrm{lose}\:\mathrm{money}\:\mathrm{some}\:\mathrm{might}\: \\ $$$$\mathrm{gain}\:\mathrm{but}\:\mathrm{the}\:\mathrm{net}\:\mathrm{change}\:\mathrm{in}\:\mathrm{money}\: \\ $$$$\mathrm{for}\:\mathrm{all}\:\mathrm{of}\:\mathrm{you}\:\mathrm{is}\:\mathrm{zero}. \\ $$$$\mathrm{Begining}=\mathrm{End}\:\left(\mathrm{0}\right) \\ $$
Commented by Tinkutara last updated on 16/Jun/18
Because electric field inside the sphere should also be 0.
Commented by Rio Mike last updated on 16/Jun/18
$$\mathrm{yes}\:\mathrm{your}\:\mathrm{right}\:\mathrm{but}\:\mathrm{i}\:\mathrm{think}\:\mathrm{c} \\ $$$$\mathrm{is}\:\mathrm{the}\:\mathrm{best}\:\mathrm{answer} \\ $$
Commented by Tinkutara last updated on 24/Jun/18
Can anyone confirm the answer please?