Power, Current, Voltage & Resistance The most basic Power relationship is: P = I x V However, using Ohm's Law V = R x I, we can rewrite the Power formula in two equivalent ways: P =( I^2) x R P = (V^2) / R Which relationship you might use, depends on what you are looking for and what you are given. ● Saved 4. In a simple DC (Direct Current) series circuit powered by a 9.0V battery there are two light bulbs. The resistance of each light bulb is 2.0 Ohms and the current being pushed through the battery AND pushed through each light bulb is 2.25A. Determine the power generated by the battery as current is moved through the battery. Start with the basic Power formula
Power, Current, Voltage & Resistance The most basic Power relationship is: P = I x V However, using Ohm's Law V = R x I, we can rewrite the Power formula in two equivalent ways: P =( I^2) x R P = (V^2) / R Which relationship you might use, depends on what you are looking for and what you are given. ● Saved 4. In a simple DC (Direct Current) series circuit powered by a 9.0V battery there are two light bulbs. The resistance of each light bulb is 2.0 Ohms and the current being pushed through the battery AND pushed through each light bulb is 2.25A. Determine the power generated by the battery as current is moved through the battery. Start with the basic Power formula
Chapter7: Electricity
Section: Chapter Questions
Problem 8Q
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Power, Current, Voltage & Resistance
The most basic Power relationship is:
P = I x V
However, using Ohm's Law V = R x I, we can rewrite the Power formula in two equivalent ways:
P =( I^2) x R
P = (V^2) / R
Which relationship you might use, depends on what you are looking for and what you are given.
● Saved
4.
In a simple DC (Direct Current) series circuit powered by a 9.0V battery there are two light bulbs. The resistance of each light bulb is 2.0 Ohms and the current being pushed through the battery AND pushed through each light bulb is 2.25A.
Determine the power generated by the battery as current is moved through the battery.
Start with the basic Power formula.
Hint:
Remember to get full credit for an open response question using mathematical relationships, you MUST:
Rewrite the basic symbolic relationship.
Show substitution of variable values with units into the symbolic relationship.
Provide an answer which starts with the variable symbol followed by an equal sign, followed by the value of the answer, followed by the units of the answer.
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