<p>Ohm's law</p><p>QUESTIONS</p><p>1. What does Ohm's law tell us?</p><p>The amperage of a current circulating through a closed circuit is directly proportional to the voltage being applied, and inversely proportional to the circuit´s electrical resistance</p><p>2. If the voltage applied to a circuit is increased, what will happen to the amperage of the electric current circulating? What if the voltage is decreased?</p><p>The amperage will increased too. If the voltage is decreased, the amperage will decreased</p><p>3. If the resistance in a circuit is decreased, what will happen to the amperage of the electric current circulating? What if the resistance is increased?</p><p>If the resistance of the circuit is decreased, the amperage will increased. And if the resistance of the circuit is increased the amperage will decreased</p><p>4. What happens if a circuit has no resistance? And what if it has infinite resistance?</p><p>If the circuit has no resistance it can produce a short circuit. In other words , the amount of electrons flowing is so high that the circuit can be burned out. ( in the case where the generator is a battery it will run down very quickly)</p><p>If it has infinite resistance, the electrons cannot flow through it.</p><p>5. What is the mathematical expression for Ohm's law?</p><p>I= V / R 6. There are three physical magnitudes used in the equation for Ohm's law: amperage of the current, voltage, and resistance. What units from the international system are used to measure these?</p><p>Amperage is measured in amperes (A) , Voltage is measured in volts (V) and resistance is measured in ohmios (Ω)</p><p>7. Use an Internet search to find a definition for the three magnitudes listed in the previous question.</p><p>The electrical resistance of an electrical conductor is a measure of the difficulty to pass an electric current through that conductor</p><p>Voltage, electric potential difference, electric pressure or electric is the difference in electric potential energy between two points per unit electric charge.</p><p>The strength of an electric current measured in amperes.</p>