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Coldblackice
  • Member for 12 years
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67 votes
5 answers
108k views

How to choose value of resistor in voltage divider?

29 votes
4 answers
70k views

Why is it bad to mix new and old batteries?

10 votes
3 answers
1k views

Why might a multimeter ask for "wrong" fuse sizes?

9 votes
1 answer
3k views

Why do laptop batteries have so many terminals?

8 votes
1 answer
1k views

Could I double the batteries for double the usage time?

8 votes
8 answers
3k views

How does the electricity "know" the ratio of the resistance in a voltage divider?

5 votes
4 answers
3k views

What's this special type of PCB prototyping board called?

4 votes
3 answers
2k views

How can I know if I'm safe from burning out my robot with more voltage?

3 votes
1 answer
2k views

How can I tell if something's controlled by an analog or digital input?

3 votes
2 answers
380 views

Why are some IC's programmable in circuit, but others aren't?

2 votes
3 answers
3k views

Possible to charge one phone off another?

2 votes
2 answers
2k views

Can current still be (alternatively) measured with a blown multimeter fuse?

1 vote
1 answer
6k views

Can wet-cell and gel-cell batteries be mixed?

1 vote
1 answer
137 views

Possible to determine a device's power requirements based on the batteries it takes?

0 votes
0 answers
78 views

What is the order of power intake across a GPU's power connectors?

0 votes
2 answers
609 views

Can polarity be reversed to effectively reverse the output of its intended/motored function?

-4 votes
4 answers
31k views

Can a phone charger be adapted to charge a laptop battery? [closed]

-5 votes
3 answers
34k views

How do you go about designing a circuit? [closed]