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AirCraft Lover
  • Member for 3 years, 3 months
  • Last seen more than a month ago
  • Jakarta, Indonesia
2 votes
7 answers
12k views

Why is a laptop power supply output voltage different from its battery?

1 vote
2 answers
5k views

How can I use USB output (5V DC) to power a fan 12V DC load?

0 votes
3 answers
258 views

What is the rule to put grounding in the circuit schematic, and what is that grounding for?

0 votes
1 answer
143 views

How do I make water tank control circuit?

0 votes
2 answers
159 views

How do I do calculation in CircuitLab? How do I provide +Vcc and -Vcc to the OpAmp?

0 votes
2 answers
94 views

How do I learn OpAmp? Do I need to know the internal circuit? Are they works the same way?

0 votes
2 answers
74 views

What will happened to the electric/electronic equipment if we supply with different Cos Phi?

0 votes
0 answers
62 views

How does Solenoid works? How do I calculate its output power? [duplicate]

0 votes
3 answers
152 views

What is the very basic electronic component to generate pulse wave (high or low) we commonly see in digital?

-1 votes
4 answers
2k views

What will happen if I use laptop charger (3.42A, 19.2V) to charge 12V battery? [closed]

-2 votes
1 answer
878 views

How to measure battery capacity?