The study of superconductivity is an important field in physics.

This research institute is exploring new applications for superconductivity.

Thunder roared, and lightning ran.

He is an expert in electronics.

Electromagnetism is a part of physics that studies the interaction between electricity and magnetism.

Molybdenum is an important element in the production of steel.

An electric arc is a phenomenon where a strong current flows between electrodes.

Electromagnetic interaction is one of the fundamental forces used to explain the force between substances.

The herald came to deliver a message from the king.

He is in charge of the transmission of important information.