Dr-Bios Academy
← Level 1 — Laptop Repair: Core Skills

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What is a Watt?

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LESSON DESCRIPTION

This video explores the concept of power, measured in Watts (W), and explains why understanding wattage is critical for motherboard diagnostics and laptop repair.
• Power Formula: Learn the fundamental equation W=V×AW = V \times AW=V×A (Voltage ×\times× Amperes) to calculate the power consumption or capacity of an electronic device.
• Real-World Application: Understand how to verify an adapter’s power rating by multiplying its voltage and amperage, which is essential for ensuring motherboard compatibility.
• Repair Diagnostics: Discover why correct wattage is vital; insufficient power can lead to weak battery charging, performance drops, or the motherboard failing to recognize the adapter.
• System Communication: Learn that modern laptops use multicontrollers to read adapter wattage to determine whether the power source is accepted for system operation.

Part of: Level 1 — Laptop Repair: Core Skills

Course duration: 14:00 hours
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