A light bulb, attached (by itself) to an ideal 10 V battery, becomes hotter as time goes on. The bulb's filament is made of tungsten, a metal, which becomes more resistive as its temperature increases. Which statement below is true?
a. As time goes on and the bulb grows hotter, the voltage across the bulb increases so the bulb would grow brighter.
b. As time goes on and the bulb grows hotter, the current through the bulb increases so the bulb would grow brighter.
c. As time goes on and the bulb grows hotter, the voltage across the bulb decreases so the bulb would grow dimmer.
d. As time goes on and the bulb grows hotter, the current through the bulb decreases so the bulb would grow dimmer.
Answers: 1
Physics, 22.06.2019 09:00
Yvette hangs a 2.4kg bird feeder in the middle of a rope tied between two trees. the feeder creates a tension of 480 n in each side of the the rope.
Answers: 1
Physics, 22.06.2019 10:30
An insulated 40 ft^3 rigid tank contains air at 50 psia and 120°f. a valve connected to the tank is now opened, and air is allowed to escape until the pressure inside drops to 25 psia. the air temperature during this process is kept constant by an electric resistance heater placed in the tank. determine the electrical work done during this process.
Answers: 2
Physics, 22.06.2019 10:40
When the magnetic domains in a material can be aligned, but eventually drift out of alignment, the material is
Answers: 2
A light bulb, attached (by itself) to an ideal 10 V battery, becomes hotter as time goes on. The bul...
Mathematics, 29.01.2020 19:53
History, 29.01.2020 19:53
English, 29.01.2020 19:53
Mathematics, 29.01.2020 19:53
History, 29.01.2020 19:53
Mathematics, 29.01.2020 19:53
Mathematics, 29.01.2020 19:53