My MagSafe adapter stopped working 10 days ago, so I bought a replacement wire and replaced the original with this third-party wire. It worked fine until this morning. It magically stopped charging! So, I used one of those testers for current (This might've been a mistake) to check whether the charger was actually sending current or not.
On touching the tester to the L-Shaped head, it sparked and then there was no current!
I didn't connect it back to the MacBook since I'm afraid it might burn the socket or something which would ultimately cost me to change the entire Motherboard I believe as they are fitted into the PCB. (I'm not very educated on this stuff)
Should I try connecting it back to the MacBook?
Should I buy the original adapter from Apple?
This is what I mean by L-Shaped(60W):
This is the tester I'm talking about: