Your email is safe with us. These Ohm's Law word problems will show you how to use the Ohm's Law to solve some basic and simple word problems. If V4 = 50 V, R4 = 10 GΩ, then I4 = __: 23. If 1st band = Red; 2nd band = Red; 3rd band = Red; and V = 44 V, then I = ___? circuit. If I1 = 50 mA, R1 = 50 kΩ, then V1 = __: 20. An ammeter is connected to the circuit which reads 2 A. Find the voltage when the current and the resistance are given. The water heating rod draws 10 A current when connected to certain power source. Ohm's law - math word problems Ohm's law states that the current through a conductor (or resistor) between two points is directly proportional to the voltage across the two points. Everything you need to prepare for an important exam!K-12 tests, GED math test, basic math tests, geometry tests, algebra tests. It = If there is only one resistor you can think of that as Rt. The current in the circuit is 1.5 A. Read the sample problems. Ohm’s Law: Sample Problems. If 1st band = Brown; 2nd band = Black; 3rd band = Orange; and I = 50 mA, then by using the formula of Ohm’s law find the value of voltage source which powers the source: 35. What is the net resistance of the bulb? The current flowing through the source is: 3. The current and the resistance are given. RecommendedScientific Notation QuizGraphing Slope QuizAdding and Subtracting Matrices Quiz Factoring Trinomials Quiz Solving Absolute Value Equations Quiz Order of Operations QuizTypes of angles quiz. So be careful. An electrical bulb draws 5 A current when connected to a 100-V wall outlet, the resistance of bulb is: 18. The voltage and the resistance are given, so we can just use the formula to find the current. About me :: Privacy policy :: Disclaimer :: Awards :: DonateFacebook page :: Pinterest pins, Copyright Â© 2008-2019. To try an interactive demonstration of the relationship between voltage and resistance, click on the Science 9 Web site and look under Lesson 3.3 A: Ohm's Law. The current and the voltage are given. If 1st band = Orange; 2nd band = Orange; 3rd band = Orange; and I = 10 mA, then by using the formula of Ohm’s law find the value of voltage source which powers the source: This portion of quiz involves series circuits. What is the voltage of the source? The current flowing through kettle is: 14. 9. One stop resource to a deep understanding of important concepts in physics, Area of irregular shapesMath problem solver. It is 1k Ohms resistor. law, Use the contact form from top or mail us at: guzel-ee@outlook.com, 5 Error Sources in Ohm’s Law Experiment [How to avoid them], Solution: From I = V/R = 5-V/10 ohm = 0.5 A, Solution: From I = √(P/R) = √(50 V/ 2A) = √25 A = 5 A, Solution: Here I = V/R = 10 V / 15 kΩ = 0.666 mA = 666 µA, Solution: Here P = I2R = (5 A)2 * 10 Ω = 250 watts, Correct answer: 1. The first and second bands represent a number while the third and fourth one represents a multiplier. The overall current provided by the 100 V source is: 40. A small light bulb is connected to a 6 V battery and draws 2 A of current. Ohms Law Quiz Numerical Problems. the coiled heating element of a stove, the resistance of the element is The source voltage is: 15. 000 000 001, Solution: The resistor can be color coded from the chart as shown below. Two parallel resistors both having their values 50 and 60 ohms are connected in parallel. If V7 = 10 V, I7 = 1 μA, then R7 = __: 27. What is the net resistance of the bulb? In each of the problems, students are given two of the three variables (voltage, resistance, or current) and are asked to solve for the third. What is the resistance of the filament in the lightbulb? Two parallel resistors both having their values 28 ohms are connected in parallel. 29. 11. Step 2: Since R is unknown, cover R and you see V/I. How much current flows through a heating element that has a resistance of 50 ohms when 230 volts are applied to it? Two resistors having values 18 ohms and 50 ohms are connected in series to an unknown source. Everything you need to prepare for an important exam! If V5 = 99 kV, R5 = 33 GΩ, then I5 = __: 24. Two resistors having values 5 ohms and 10 ohms are connected in series to a 10 V source. Find the voltage when the current and the resistance are given. If you can solve these problems with no help, you must be a genius! 13. If I3 = 100 µA, R3 = 50 MΩ, then V3 = __: 22. The resistor connects to a 10 V source. Now I = V/R = 47/470 = 0.1 A, Solution: From color coding of resistors the resistor is 2.2 kohms. If V = 50 V and I = 5 A, then R = ___: 4. If I = 5 A and R = 10 Ω, then P = ___? amperes does the frying pan draw? Neglecting the tolerance we can easily use the, Solution: From color coding of resistors the resistor is 470 ohms. Learn about investing money, budgeting your money, paying taxes, mortgage loans, and even the math involved in playing baseball. Components which obey Ohm’s law are known as: 12. 36. Step 2: Since V is unknown, cover V and you see I x R. Step 3: place numbers in for I and R and multiply to find V. 3. We will use the formula to show how to do the followings: Find the current when the voltage and the resistance are given. Introducing the constant of proportionality, the resistance, it arrives at the usual mathematical equation I = U/R or I=V/R Number of problems found: 16