It's difficult to understand the principles of electromagnetism.

Lightning is one of the electrical discharge phenomena in the atmosphere.

When lightning discharges electricity into the air, we observe it as a flash of lightning.

In organic chemistry, indene is an important compound.

This old battery is no longer usable.

We measure power using a wattmeter.

The electrolytic capacitor is an important part of electronic equipment.

He does exercises to train his gluteus muscle every day.

We decided to install a personal electricity generation system.

He likes to make music using electronic sounds.