Which one of the following pairs is not correctly

Solution

• An Ammeter is a device used to measure electric current, not electrical power. • It measures the amount of electric current flowing through a circuit and displays it usually in amperes (A). • Thus, option (d) is incorrectly matched. • The other options are correctly matched: o Odometer measures the distance traveled by a vehicle. o Ondometer measures the frequency of electromagnetic waves. o Audiometer measures the intensity or sensitivity of sound (especially for hearing tests). Thus, the correct answer is (d).