Ohm's Law and Simple Math: Base Electronics: 1

This tutorial introduces Ohm's Law, a fundamental concept in electronics that describes the relationship between voltage, current, and resistance. The video explains basic algebraic equations, emphasizing the importance of equal sides and operations on both sides. Through practical examples, viewers learn to calculate unknown values in circuits using Ohm's Law. The tutorial also covers manipulating equations to isolate variables, providing a foundation for more complex calculations. The session concludes with a review of key concepts and a preview of the next tutorial on voltage, current, and resistance.

Who is credited with the discovery of Ohm's Law?

• Nikola Tesla

• A meditating Lama

• Isaac Newton

• Albert Einstein

What must be true for both sides of an algebraic equation?

• They must be equal

• They must be less than ten

• They must be different

• They must be greater than zero

What is the current in a circuit with 12 volts and 4 ohms of resistance?

• 3 amps

• 2 amps

• 5 amps

• 4 amps

If you double one side of an equation, what must you do to the other side?

• Subtract the same amount

• Divide by two

• Double it as well

• Leave it unchanged

How do you isolate the current (I) in an equation?

• Multiply both sides by resistance

• Subtract voltage from both sides

• Divide both sides by resistance

• Add voltage to both sides

What happens to the current if the resistance is doubled but the voltage remains the same?

• The current halves

• The current triples

• The current doubles

• The current remains the same

What is the new current if the resistance is doubled from 220 ohms to 440 ohms, keeping the voltage constant?

• 0.0227 amps

• 0.0114 amps

• 0.0454 amps

• 0.0341 amps