A galvanometer with a coil resistance of $40.0 \Omega$ deflects full scale for a current of $2.0 \mathrm {~mA}$. What series resistance should be used with this galvanometer in order to construct a voltmeter that deflects full scale for $50 \mathrm {~V}$ ?
A) $27 \mathrm { k } \Omega$
B) $29 \mathrm { k } \Omega$
C) $31 \mathrm { k } \Omega$
D) $25 \mathrm { k } \Omega$

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The Answer of A galvanometer with a coil resistance of $40.0 \Omega$ deflects full scale for a current of $2.0 \mathrm {~mA}$. What series resistance should be used with this galvanometer in order to construct a voltmeter that deflects full scale for $50 \mathrm {~V}$ ?
A) $27 \mathrm { k } \Omega$
B) $29 \mathrm { k } \Omega$
C) $31 \mathrm { k } \Omega$
D) $25 \mathrm { k } \Omega$

A Galvanometer with a Coil Resistance Of 40.0Ω40.0 \Omega40.0Ω Deflects Full Scale for a Current Of

A Galvanometer with a Coil Resistance Of $40.0 \Omega$ Deflects Full Scale for a Current Of