rOmV4 - Measure Power

If you know the resistance and one or other of the voltage or current you can use these formulas: Power = V² / R = I² R

Beware: Make sure the voltage, current or resistance values are the ones that apply to the component or sub-system where you need the power.

Subject Name Level Topic Name Question Heading First Name Last Name Class ID User ID

Q: qNum of last_q Q ID: Question ID Score: num correct/num attempts Date Done

Question Text

image url

Help Link

Add Delete Clone Edit Hardness

Help Text

Debug

You can attempt a question as many times as you like.
If you are logged in, your first attempt, each day, is logged.
To improve your scores, come back on future days, log in and re-do the questions that caused you problems.
If you are logged in, your most recent wrong answers get remembered. This might help you and your teacher to correct your understanding.
In the grade book, you can delete your answers for a topic before re-doing the questions. Avoid deleting unless you intend re-doing the questions very soon.

Hosted at linode.com - London

Please report website problems to Neil