Select the correct answer from each drop-down menu. How do you define resistance and voltage?

is a measure of the extent to which a device opposes the flow of current. is a measure of the "strength" of devices such as batteries and generators, which cause a current flow.

1. A. voltage

B. resistance

C. power

2. A. power

B. resistance

C. voltage

Awall of 0.5m thickness is to be constructed from a material which has average thermal conductivity of 1.4 w/mk. the wall is to be insulated with a material having an average thermal conductivity of 0.35 w/mk so that heat loss per square meter shall not exceed 1450 w. assume inner wall surface temperature of 1200°c and outer surface temperature of the insulation to be 15°c. calculate the thickness of insulation required.