What does the equation n =Pout/Pin mean?
Answers
Answer:
Power efficiency
Explanation:
The power efficiency tells us how much efficient is a process, the bigger value we can obtain is 1, that means that we are not wasting energy, in real life, it is always below 1 because some energy is wasted on heat or other undesired process. that's why the output power is always lower than the input power.
Related Questions
PLEASE HELP ME A lens with a surface that curves outward like the exterior of a sphere is __________. (Points : 1) reflected refracted concave convex
A weight is connected to a spring that is suspended vertically from the ceiling. If the weight is displaced downward from its equilibrium position and released, it will oscillate up and down.If air resistance is neglected, will the total mechanical energy of the system (weight plus Earth plus spring) be conserved?A. YesB. No
Regarding Indonesia, which of the following statements is false
A ball rolls down an incline with an acceleration of 10 cm/s^2. If it starts with an initial velocity of 0 cm/s and has a velocy of 50 cm/s when it reaches the bottom of the ramp, how long is the ramp?
B. Time: s
C. Length: km
D. Temperature: K
Answers
Answer:
C. Length: km
Explanation:
Let's analyze each option:
A. Mass: in the SI system, mass is measured in kilograms (kg), so this matching is correct.
B. Time: in the SI system, time is measured in seconds (s), so this matching is correct.
C. Length: in the SI system, length is measured in meters (m). The kilometer, instead, is a multiple of the meter (). Therefore, this matching is not correct.
D. Temperature: in the SI system, temperature is measured in Kelving (K), so this matching is correct.
b. step-up transformer
c. step-down transformer
d. motor
e. detector
Answers
The correct answer of the question is : B) Step-up transformer.
EXPLANATION :
Before coming into any conclusion, first we have to understand the step-up and step-down transformer.
The step-up transformer is the transformer whose transformer ratio is greater than one. It means it will increase the voltage of the source or decrease its current.
On the other hand, the transformer ratio of step-down transformer is less than one. Hence, it will decrease the higher voltage to lower voltage or increase the lower current into higher current of the given source.
As per the question, we want to increase the voltage of the source.
Hence, we have to use step-up transformer.
B. It is organic
C. Its structure is crystal
D. Its a liquid, solid, or gas
Answers
Answer:c-its structure is crystal
Explanation:
A substance is called a mineral if it meets the following requirement
naturally occurring,
inorganic,
solid,
definite chemical composition,
ordered internal structure
So the definite answer is crystal structure because they have an ordered internal structure.
Hope it helps
Final answer:
A mineral is a naturally occurring, inorganic, solid substance with a specific chemical composition and a crystalline structure. Hardness may vary among minerals and they are not organic. They are solid under normal conditions on Earth.
Explanation:
A mineral is defined by several specific characteristics: it is naturally occurring, inorganic, solid, has a definite chemical composition, and has a ordered internal arrangement of atoms - structure typically crystalline in nature.
- It is hard: Not all minerals are hard. The hardness of a mineral is determined by the Mohs scale. So, hardness is a characteristic but not a definition.
- It is organic: This statement is untrue. Minerals are inorganic substances.
- Its structure is crystal: This is true. Minerals have a crystalline structure due to the orderly, repeating pattern of their atoms.
- It's a liquid, solid, or gas: This is partly correct. Minerals are solids under normal conditions on Earth.
Learn more about Mineral here:
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Answers
Answer: the correct answer is option d.
Explanation:
Validity is concerned with the extent to which differences in scores reflect true differences in the characteristic.
Answer:
d. concerned with the extent to which differences in scores reflect true differences in the characteristic.
Explanation:
Validity is the level of accuracy of a measurement under research or test. A measurement is said to be valid if its result is closely related to real world values. Validity in research shows how sound one's research is. In data it means getting a true representation of the data a researcher is claiming to measure. To measure validity, the measurement must have internal consistency and good test-retest reliability.
Types of validity.
Validity can be content, construct, face and criterion.
Answers
Answers
Answer:
Explanation:
The experience is magnanimous and wonderful when witnessing the hotspot site. It was a great feeling! I could witness the red hot lava oozing out to the ocean floor from the subsurface like water from a hot-spring, and immediately, a cooling effect occurs. At that current time, the gas was coming up in the form of gas bubbles. I believed there was a mini-volcano located inside the ocean! The scene was fascinating, just like inserting a red-hot metallic-iron ball into the cool water, thereby creating a fizzing of gas and the ball's immediate cooling. It was a remarkable experience of witnessing an underwater volcano with the erupting lava and its immediate cooling to form a solid material.