Neon signs require 12 kv for their operation. to operate from a 244 v line, what must be the ratio of secondary to primary turns of the transformer?

How does the image distance (di) of a convex lens compare with the image distance of a concave lens? a. the image distance of the convex lens is positive, and that of the concave lens is negative. b. both are negative for a virtual image. c. both are positive for a virtual image d. the image distance of the convex lens is negative, and that of the concave lens is positive.

Avoltaic cell converts chemical energy to

If an electric circuit is not grounded it is best to reach out and touch it to provide the ground a. true or b. false