When there is a 5.00 A current through an 10.0- device, how much ...

[Pineappleeh]

When there is a 5.00 A current through an 10.0- device, how much power is being dissipated in the device?
 
  A) 50.0 W
  B) 250 W
  C) 500 W
  D) 2.50 kW

Question 2

A certain thermodynamic engine extracts 1.30 kJ of thermal energy from a hot temperature reservoir and discharges 0.70 kJ of energy to a cold temperature reservoir. What is the efficiency of this engine?
 
  A) 46
  B) 54
  C) 86
  D) 27
  E) 13

[Jordin Calloway]

Answer to Question 1

B

Answer to Question 2

A

[Pineappleeh]

Wow, this really help

[apple]

Gracias!