iamabouttofail
27.03.2021 •
Physics
Which of these is NOT a form of energy?
A. mechanical
B. chemical
C. theoretical
D. thermal
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Ответ:
Ответ:
I think it's theoretical.
Ответ:
Choice B: The current decreases.
Explanation:
The resistance of a conductor is proportional to its length when radius and resistivity stays the same. The resistance of the longer filament will be greater than the resistance of the initial one.
For Ohmic conductors,
where
Voltage here stays the same. Increasing the resistance
of the conductor will reduce the current.
The filament might heat up over time. The filament might not be an ohmic conductor. Still, a similar trend shall exist. Resistance will be greater in the longer filament, and current will decrease.