An ammeter reads ${\rm{0}}{\rm{.90}}\,\,{\rm{A}}$ when connected in series with a silver voltmeter that deposits ${\rm{2}}{\rm{.60 }}\,{\rm{g}}$ of silver in ${\rm{40}}\,\,{\rm{min}}$. By what percentage is the ammeter reading is correct? Atomic weight of silver ${\rm{ = 108}}\,\,\,{\rm{and}}\,\,{\rm{1}}\,\,{\rm{F}}\,{\rm{ = }}\,{\rm{96500}}\,\,{\rm{C}}$ ?

$\begin{array}{*{20}{l}} {{\rm{ - 7}}\,\,{\rm{\% }}} \end{array}$

$\begin{array}{*{20}{l}} {{\rm{5}}\,\,{\rm{\% }}} \end{array}$

$\begin{array}{*{20}{l}} {{\rm{7}}\,\,{\rm{\% }}} \end{array}$

$\begin{array}{*{20}{l}} {{\rm{ - 5}}\,\,{\rm{\% }}} \end{array}$

NEET UG PHYSICS MCQ: CURRENT ELECTRICITY

1 Medium

1 of 1

Application +4 | -1

An ammeter reads

\mathrm{0}\mathrm{.90}\,\,\mathrm{A}

when connected in series with a silver voltmeter that deposits

\mathrm{2}\mathrm{.60 }\,\mathrm{g}

of silver in

\mathrm{40}\,\,\mathrm{min}

. By what percentage is the ammeter reading is correct? Atomic weight of silver

\mathrm{ = 108}\,\,\,\mathrm{and}\,\,\mathrm{1}\,\,\mathrm{F}\,\mathrm{ = }\,\mathrm{96500}\,\,\mathrm{C}

View answer and explanation

Correct option: D

\begin{array}{llllllllllllllllllll} {\mathrm{ - 7}\,\,\mathrm{\% }} \end{array}

Option D (-7 %) is correct because it calculates the percentage error in the ammeter reading based on the mass of silver deposited.

Practice All Chapter MCQs →

T

\mathrm{quantity}\,\,\mathrm{/}\,\mathrm{quantities}

\mathrm{is}\,\,\mathrm{/}\,\,\mathrm{are}