Exam 8: Measuring Instruments

AC/DC ammeters use the ____ effect as their basic principle of operation.

An ohmmeter should always be readjusted to ____________________ when the scale is changed.

The ____ is used to measure resistance.

The test instrument used to measure current in an electrical circuit is called a(n) ____________________.

A low-impedance voltage tester has a very large current draw compared with other types of voltmeters and should never be used to test ____________________-power circuits.

When reading an ohmmeter scale, the value of resistance shown at the far left end of the scale is ____________________.

The ____, unlike the voltmeter, is a very low-impedance device.

____________________ meters are characterized by the use of a pointer and scales to indicate values.

The test instrument used to measure voltage in a circuit is called a(n) ____________________.