A galvanometer with coil resistance 12.0Ω shows full scale deflection for a current of 2.5mA. How would you convert it into a voltmeter of range 0 to 10.0V?
a. 3988Ω in series
b. 0.43Ω in parallel
c. 2000Ω in parallel
d. 1.62Ω in series
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