Aside from generating and manipulating electricity, an Electromaster is said to able to sense all phenomenon related to his/her power. All electric fields from the surrounding nature, along with all magnetic and electromagnetic information are processed subconsciously whether they want to or not.  A paper entitled Unique Sensory Perceptions of Electric-type Espers and their Applications ( 発電能力者による特殊知覚とその応用について hatsuden nōryoku-sha ni yoru tokushu chikaku to sono ōyō ni tsuite?) was made on this topic by the former power development director of Nagatenjouki Academy, Jounan Asako.
- Railgun (
超電磁砲Chō-Denjihō (Rērugan)?, lit. "Super Electromagnetic Cannon") is the ability of the strongest Electromaster, Misaka Mikoto. Her ability is considered the third most valuable ability in Academy City due to its large output and exceedingly vast range of applications.
- Misaka Mikoto - Level 5 Railgun
- Radio Noise Clones - Levels 2-3
- Misaka Worst - Level 4
- Naoya - Level Unknown
- Unnamed Tokiwadai Middle School Swim Club member - Level Unknown
- ↑ Toaru Kagaku no Railgun Manga Chapter 016 special
- ↑ 2.0 2.1 2.2 Toaru Kagaku no Railgun OVA 01
- ↑ Toaru Majutsu no Index Light Novel Volume 09/Chapter 1
- ↑ Toaru Majutsu no Index Light Novel Volume 15 Chapter 02 Part 10
- ↑ Shinyaku Toaru Majutsu no Index Light Novel Volume 02 Chapter 1 Part 2
- ↑ Toaru Kagaku no Railgun Manga Chapter 030