Asked by ADEOSUN

A GALVANOMETER WITH COIL RESISTANCE 12.0OHMS SHOWS FULL SCALE DEFLECTION FOR A CURRENT OF 2.5MA HOW WOULD YOU CONVERT IT INTO A VOLTMETER OF RANGE 0 TO 10VOLTS
Answered by Henry
Add a resistor in series with the
coil:

R+12 = E/I = 10/0.0025 = 4,000,
R = 4,000-12 = 3,988 Ohms.

Answered by Henry
R = (10-0.0025*12)/0.0025 = 9.97/0.0025 = 3,988 Ohms.

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