67ᵗʰ B.P.S.C. (Pre) 2022
Which of the following is not correctly matched?
aVoltmeter - Potential difference
bAmmeter - Electric current
cPotentiometer- Electromotive force ## Page 46 CLICK HERE - JOIN @APNAPDFS
dGalvanometer - Electric resistance✓ Correct
eNone of the above / More than one of the above
Explanation
A galvanometer is used to detect a small (low) electric current. Electric resistance is measured by an ohmmeter. A voltmeter measures potential difference, and an ammeter measures electric current. A potentiometer does not measure the electromotive force (EMF) of a cell directly; rather, it determines the correct EMF by comparing it with a standard cell.
general-mental-ability