The Supreme Court set the stage Monday for what could be an important ruling on government sting operations, agreeing to review the case of a Nebraska farmer convicted of receiving "kid porn" through the mail.

The court said it will decide whether Keith Jacobson unlawfully was entrapped by Postal Service investigators.Jacobson, who lives near Newman Grove, Neb., was convicted of receiving in 1987 a copy of a magazine called "Boys Who Love Boys."

In other action Monday, the court:

- Agreed to consider new limits on the ability of state and local governments to protect electricity consumers from paying for nuclear power plants.

The court said it will review a ruling that barred a Louisiana public utility company from recovering $135 million it spent on a nuclear generating facility.

- Agreed to decide whether federal prison inmates who seek monetary damages for alleged violations of their rights must exhaust all administrative remedies provided by the Bureau of Prisons before suing.

- Left intact a $175,000 libel award a county prosecutor won against a Covington, Ky., newspaper in 1985.

The justices, without comment, rejected arguments that the award "leaves the future vitality of speech about Kentucky's government and its officers in jeopardy."

- Let stand a $7 million judgment a Springfield, Ill., hospital and doctor must pay to a girl who was severely injured at birth after her mother received the anesthetic Mar-caine.

- Let stand a decision that even if a substantial segment of a jury consists of blacks, a verdict can be overturned if others were excluded from the panel because of their race alone.

- Refused to kill a lawsuit by 18 former Xerox Corp. employees who said they were fired because they were over 40 years old.