A certain x-ray tube requires a current of 7 mA at a voltage of 80 kV. The rate of energy dissipation (in watts) is:
A) 560
B) 5600
C) 26
D) 11.4
E) 87.5

Question

Quizplus · Accepted Answer

The rate of energy dissipation in watts can be calculated using the formula Power (P) = Voltage (V) * Current (I). Given that the voltage is 80 kV (or 80,000 volts) and the current is 7 mA (or 0.007 amperes), the power dissipation is P = 80,000 volts * 0.007 amperes = 560 watts.

A Certain X-Ray Tube Requires a Current of 7 MA