a question from a computer idiot

i have dell inspiron 5150 and when i plug the ac adaptor in the laptop nonthing happens. then i push the power button and the battery light comes on for about 10 seconds and goes away. no fans come on or nonthing. i think it is the battery or ac adaptor but before i spend any money i would like to what u think is wrong any help would be greatly appreciated

Do you know anyone else who has a dell ac adapter that you can use as a test?

no if i took it 2 one of the dell stores in the mall i bet they might have one come to think of it

Have you tried taking the battery out completely and trying only AC power? If it comes on, you'll have narrowed it down to a bad battery. If it doesn't come on, it may be either the power cable or possibly the internal power supply.

My sister had this problem on her Dell laptop. What happend is when she presses the power button the light batter sign would show up and then go away. Also the light on the AC adapter would turn off.

Does your light turn off?

If so it might be the motherboard.