Author Question: A megawatt is A) 1,000,000 watts. B) 1,000,000,000 watts. C) 1000 watts. D) 100 watts. E) ... (Read 192 times)

strangeaffliction · **on:** Jul 29, 2018

A megawatt is

A) 1,000,000 watts.
B) 1,000,000,000 watts.
C) 1000 watts.
D) 100 watts.
E) None of the above.

Question 2

When a 100- resistor is connected across the terminals of a battery of emf and internal resistance r, the battery delivers 0.794 W of power to the 100- resistor.

When the 100- resistor is replaced by a 200- resistor, the battery delivers 0.401 W of power to the 200- resistor. What are the emf and internal resistance of the battery? A) = 10.0 V, r = 5.02
B) = 4.50 V, r = 4.00
C) = 9.00 V, r = 2.04
D) = 9.00 V, r = 1.01
E) = 12.0 V, r = 6.00