Efraine Sherrine NisperosVannesa LikinoKaren Grace Victor

CPEgirls

ELECTRIC CURRENT

- the flow of electric charge in a circuit

Kinds:DIRECT CURRENT (DC) ALTERNATING CURRENT (AC)

VOLTAGE- The electrical

charge between two points in a circuit; The representation of electrical energy

- Expressed in volts (v)

DIRECT CURRENT• DC voltage–Charge flowing in one direction and has the same magnitude

AC VOLTAGECharge flowing in one direction but varying in magnitude.

UNITS IN MEASURING• Peak to Peak value–Measured using an oscilloscope

• RMS (Root Mean Square) value–Measured using a multimeter–Taken by multiplying the Peak value by .707

MEASURING EQUIPMENT

Volt Ohm MeterDigital MultimeterOscilloscope

VOLT OHM METER- Commonly

known as a “Multimeter”

- Measures AC and DC voltage, resistance, and current in its RMS value

- Uses a pointer over a scale to show its measured value

VOLT OHM METER

DIGITAL MULTIMETER

- A digital version of the volt ohm meter

- Displays the measured value in numerals

DIGITAL MULTIMETER

OSCILLOSCOPE- An electronic test instrument

that measures and displays the waveform of voltages

OSCILLOSCOPE

SUMMARY• Electric Current

•AC voltage•DC voltage

• Peak and RMS values• Measuring devices

•Volt ohm meter•Digital Multimeter•Oscilloscope