Lot's of folks come to these forums for electrical help. Some seem to be lazy turds that want someone else to do the work for them. But a lot seem to be sincere about doing their own fixing and just need a little guidance.
One of the best ways to help yourself is to buy a multi-meter
A basic multi-meter is a very handy tool and can last you for decades.
A expensive high-end meter isn't necessary for most hobby type uses and is often complicated to operate.
But a bottom end meter can be a waste of money if it can't be trusted and falls apart.
I have used lots of different meters and owned many.
I bought this meter about 5 years ago from Wal-Mart of all places and have been very impressed.
I hadn't noticed it on hand for a long time but recently saw it on the shelf again.
Price was $19.95
The basic specs are pretty average.
It also reads temperature.
It has data hold, something I would not buy a new meter without.
I reach for this meter before my old faithful Fluke 77, the display is easier to read with larger digits and backlighting.
I even swapped this meters typically cheesy test leads for the Fluke's.
You can buy better leads on Ebay for around $20.