The children came into contact with the wire while playing in the area.
The deceased was identified as Salman(10) while the injured Chahat Ali (3)was shifted to hospital in a serious condition.
In a separate incident, a 45-year-old Manraj Kumar was murdered using blunt weapons at Tulheda village in the district, they said.
The incident is stated to be a fallout of some old enmity.
The body has been sent for postmortem and a case has been registered against three persons in this connection, they said, adding the accused are still absconding.