The voltage supplied in the communication room to the light fixtures can be 120 volts or 277 volts respectively.
Options B and C are the correct answers.
<h3>What is voltage?</h3>
Voltage is the electric force that makes the charges move which creates an electric current.
The light fixtures are the component of light that is being attached to the wall or a ceiling that holds any kind of lighting element. For instance, the holder of a bulb in which it is fixed is treated as a light fixture. The general voltage produces by a light fixture is 120 volts but preferable should be at 277 volts.
Therefore, all the volts except which is mentioned in options A and D cannot correspond to the voltage of light fixtures.
Learn more about the voltage in the related link:
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Answer:
Explanation:
By Gauss Law for electric field:
Where is the charge density Q/A. Since we have 2 parallel plates with different charge, the electric field at point P in the gap would be the sum of 2 field
Answer:it must operate at temperatures below 0’C
Explanation:
Answer:
Both value of V are different, therefore, what is proposed in the question is not possible
Explanation:
Given data:
E₁=35 GPa (longitudinal moduli of elasticity)
E₂=5.17 GPa (transverse moduli of elasticity)
Ee=3.4 GPa (elastic modulus epoxi)
Ef=131 GPa (elastic modulus fiber)
To produce a continuous and oriented aramid fiber-epoxy matrix, the volume fraction of the fibers must be the same. Then, we must calculate the volume fraction of the fibers in the longitudinal and transverse:
For the longitudinal:
Solving for V:
V=0.2476
For the transverse:
Solving for V:
V=0.3515
You can see that both value of V are different, therefore, what is proposed in the question is not possible
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