Explore BrainMass
Share

Lightbulbs and Fuses

This content was STOLEN from BrainMass.com - View the original, and get the already-completed solution here!

How many 100-W lightbulbs connected to 120V can be used without blowing a 15-A fuse?

I = P/V
I = 100W/120V = .8A
I divided 15 A by .8 A to equal 18.75; therefore, you could use 18 bulbs.

Why is the answer incorrect? You don't need to provide a solution - just a reason why this solution is incorrect.

© BrainMass Inc. brainmass.com October 16, 2018, 8:52 pm ad1c9bdddf
https://brainmass.com/physics/electricity-magnetism/lightbulbs-and-fuses-164518

Solution Preview

In general, your answer is correct. If it is really an incorrect answer the only ...

Solution Summary

This solution provides an explanation regarding lightbulbs and fuses.

$2.19
Similar Posting

Gene Expression Systems are figured.

Let's assume that I fould a valuable gene fragment (ex. DNA sequence homology with one of the human myosin II genes)

1. Before I proceed for therapeutic development, How would I know if this gene is actually expressed in humans? What method?

2. Now let's assume it is expressed in human. I wish to express the cDNA corresponding to this gene in order to determine its function. How would you construct an expression vector? Would you use the genomic fragment or a cDNA?

3. How would you transfect your expression plasmid into cells, and what type(s) of cell might you use?

4. How would you confirm expression of your construct and encoded protein? (functions and methods)

These questions are pondered.

View Full Posting Details