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Why must the voltage supplied to a tungsten lamp be very stable? | |
A. | Because if it wasn't, the lamp would bum out [Wrong Answer] |
B. | Because amount of energy the lamp emits is proportional to the fourth power of the operating voltage [Correct Answer] |
C. | Because the lamp will only function at a specific voltage [Wrong Answer] |
D. | All of the above [Wrong Answer] |