1. Challenges for cause may be taken on one or more of the following grounds:
(a) A want of any of the qualifications prescribed by statute to render a person competent as a juror.
(b) Consanguinity or affinity within the third degree to either party.
(c) Standing in the relation of debtor and creditor, guardian and protected person, master and servant, employer and clerk, or principal and agent, to either party, being a member of the family of either party or a partner, or united in business with either party, or being security on any bond or obligation for either party.
(d) Having served as a juror or been a witness on a previous trial between the same parties for the same cause of action or being then a witness therein.
(e) Interest on the part of the juror in the event of the action, or in the main question involved in the action, except the interest of the juror as a member or citizen of a municipal corporation.
(f) Having formed or expressed an unqualified opinion or belief as to the merits of the action, or the main question involved therein, but the reading of newspaper accounts of the subject matter before the court shall not disqualify a juror either for bias or opinion.
(g) The existence of a state of mind in the juror evincing enmity against or bias to either party.
2. A challenge for cause for standing in the relation of debtor and creditor when the party to an action is a public utility as defined in NRS 704.020 may be allowed only where the circumstances as determined by the court so warrant.