Jump to content
Electronics-Lab.com Community

Light bulbs

Kevin Weddle

Recommended Posts

What's the purpose of this thread? Are you asking a question or making a statement?

An incandescent light bulb is nearly purely resistive and has virtually no reactance so will have a power factor near 1.

The resistance of the filament varies with temperature which is also dependant on the current so the current drawn by the bulb when it's on can't be deturmined by measuring its cold resistance and applying Ohm's law.

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Create New...