Tagged Questions
3
votes
3answers
323 views
220V 0.2A converted to 12V 5A, where are the missing amperes?
I have an AC adapter at home that reads (roughly) the following:
uses 220-240v AC 50Hz at 0.2A
produces 12V DC at 5A
I'm a little surprised that it uses 0.2 amps and produces upto 5. Here's what ...
0
votes
1answer
91 views
What parameters affect battery charge time?
What parameters affect battery charge time? For example if we're interested in designing a charger for mobile batteries, what parameters should be considered? What happens if a little higher voltage ...
10
votes
6answers
473 views
Understanding voltage and current
While reading "Electronics for dummies" went through the following block and I realised that I have some uncleared concepts about electricity:
Electrostatic discharge involves very high voltages ...
