Electrons have a negative electric charge.

The intensity of the electric field is proportional to the amount of charge.

The theory of electromagnetic fields is an important part of physics.

The history of Myanmar is very interesting.

The Acts of the Apostles is a part of the New Testament.

I have visited Buckingham Palace.

My favorite classic novel is Water Margin.

He finished his work at a devilish speed.

A positron is a particle that carries the opposite charge of an electron.

I boiled water using the '爨'.