An ammeter doesn't have a plus and minus. An ammeter is placed in line. If you ground one side you have a direct short to ground.


"It's just a phase. He'll grow out of it." Mama, 1964

1956 Chevy 1/2-ton 3100
1953 Chevy 6100 "The Yard dog"
1954 GMC Suburban Now with a new proud owner.