Electricity & Electronics - Ch. 4 Section Reviews

Some meters use the abbreviation COM to mark the positive polarity.

• True

• False

An iron vane meter measures current and voltage.

• True

• False

An iron vane meter is best suited for low-power circuit measurements.

• True

• False

An ammeter is used to measure _________.

• voltage

• current

• resistance

• electrical potential

In order to measure larger currents, a _____, or alternate path is provided for current.

• resistor

• scale

• shunt

• grounding

An ammeter should always be connected _________.

• in parallel with the power supply or circuit device

• in series with the power supply or circuit device

• either in series or parallel with the load

• directly across the load

A voltmeter is used to measure _________.

• voltage

• current

• resistance

• wattage

To measure higher voltages, _________ are placed in series with the meter movement coil.

• grounders

• meter scale

• shunts

• multiplier resistors

A voltmeter should be connected in series with a device.

• True

• False

The black lead of a meter is connected to the positive polarity of the device.

• True

• False