Why Is My Laptop Charger Making Noise. I would be good if you patched it up. When the charger is connected to the mains but the laptop unplugged I can hear a fizzing sound only with my ear very close to the charger.

If is new demand a new one. I have many different AC adapters and power supplies for a variety of devices ranging from small 5V1A USB chargers to laptop. Under all other conditions it makes a ticking sound.
1It does not produce the sound always.
A charger making noise doesnt always have to be a reason to panic since the cause behind it could be completely harmless. Before fixing it we need to know why your laptop is making a weird noise. If so it could be that either the wall charger unit or cable is defective or that there isnt a good connection with the iPhones dock connector. Thus the electrons are having to jump from one end of the connection to the other.
