1.3 power supply

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Gagandeep Singh

Business Technology

What you learn today CompTIA A+ 220-701 , Section 1.3 Classify power supply types and characteristics. - AC adapter. - ATX proprietary. - Voltage, wattage and capacity. - Voltage selector switch - Pins (20,24)

Amp and Volt Ampere ( amp, A) – The rate of electron flows past a point in one second. - 1 Amp = 6.242 * 10 power 18 electrons per seconds. Voltage( volt, V) - Electrical “pressure” pushing the electrons.

Watt and electric current Watt (W) – Measurement of real power use. - volts * amp = watts. 120V * 0.5A= 60W. Volt-Amperes (VA) – Measurement of appear power. - Volts * Amps - Useful for sizing power systems. Seen often in Uninterrupted Power supply (UPS) systems.

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1.3 power supply

1. A+ Hardware Section 1.3 Computer Power Made By : Gagandeep Singh

2. What you learn today CompTIA A+ 220-701 , Section 1.3 Classify power supply types and characteristics. - AC adapter. - ATX proprietary. - Voltage, wattage and capacity. - Voltage selector switch - Pins (20,24)

3. Amp and Volt Ampere ( amp, A) – The rate of electron flows past a point in one second. - 1 Amp = 6.242 * 10 power 18 electrons per seconds. Voltage( volt, V) - Electrical “pressure” pushing the electrons.

4. Watt and electric current Watt (W) – Measurement of real power use. - volts * amp = watts. 120V * 0.5A= 60W. Volt-Amperes (VA) – Measurement of appear power. - Volts * Amps - Useful for sizing power systems. Seen often in Uninterrupted Power supply (UPS) systems.

1.3 power supply

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