Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

hwo the Ampere calculation

Status
Not open for further replies.

smhn72@gmail.com

Member level 3
Member level 3
Joined
Oct 5, 2012
Messages
60
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,286
Activity points
1,702
if any where the specification of a street light is as following
12v 30watt
how much amperes will it be there required????????
 

Power = Voltage * Current

Current = Power / Voltage

So, in your case, current = (30/12)A = 2.5A

You may find that the current is not exactly 2.5A and varies. This is because the rated 30W is not the exact power and it may vary but will be around that.

Hope this helps.
Tahmid.
 

If you use filament bulb, this bulb change resistance with filament temperature. Use ampermeter to see exact amperage, or if you dont have nothing use Ohm law.
 

Status
Not open for further replies.

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top