The 25-year-old, who is on loan at Hillsborough until the end of the campaign, was among the substitutes at the Kiyan Prince Foundation Stadium as the Owls went 2-0 up courtesy of goals from Dominic Iorfa and Josh Windass.
And after coming off the bench ten minutes after the break, the Magpies man made a crucial contribution. With 12 minutes remaining, Murphy curled home a third for the visitors to put the result beyond doubt and lift Garry Monk’s side to 14th in the Championship table.
Murphy’s seventh strike of 2019/20 came in his 41st outing for Wednesday, who he joined back in August 2019.
Elsewhere in the second tier, Freddie Woodman’s Swansea City were beaten 1-0 by promotion favourites Leeds United at the weekend.
Goalkeeper Woodman was beaten by Pablo Hernandez’s late effort at the Liberty Stadium, ruining his hopes of sealing a 13th clean sheet of the campaign and putting the visitors on the brink of a return to the top flight.
Meanwhile, in Italy, Consenza suffered a 5-1 defeat at Spezia in Friday night’s Serie B clash, with Achraf Lazaar an unused substitute for Cosenza.