Which of the formulas listed is correct for...

Study

Question 1 of 205eccefa3bacbc34ba4d47f2b

Which of the formulas listed is correct for determining power?

Back

Question 1 of 20

5eccefa3bacbc34ba4d47f2b

Which of the formulas listed is correct for determining power?

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

• Ohm's Law and how voltage (E), current (I), and resistance (R) are related • Basic electrical power formula in terms of voltage and current • How to algebraically substitute using Ohm's Law to get power in terms of I and R or E and R

💭 Think About

• Start from the most basic power relationship you know that uses voltage and current. Which one is that? • Using Ohm’s Law (E = I × R), how can you rewrite the basic power formula to express power using only I and R? What about using only E and R? • Look at each option and ask: does this match one of the standard power formulas you can derive from P = E × I and E = I × R?

✅ Before You Answer

• Before choosing, write down on scratch paper the three common power formulas (in terms of E & I, I & R, and E & R) and compare them carefully to the choices. • Check that the units make sense: power is in watts, voltage in volts, current in amperes, and resistance in ohms. • Make sure no extra factor of R or I has been added or left out when comparing the derived formulas to the answer choices.

👋 Hi! I'm Genie, your AI study assistant. How can I help you with this question?

Quick actions

— No credit card needed

Study

Question 1 of 205eccefa3bacbc34ba4d47f2b

Which of the formulas listed is correct for determining power?

Back

Question 1 of 20

5eccefa3bacbc34ba4d47f2b

Which of the formulas listed is correct for determining power?

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

💭 Think About

✅ Before You Answer

👋 Hi! I'm Genie, your AI study assistant. How can I help you with this question?

Quick actions

— No credit card needed