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Why do some countries have 60hz frequency?
Technically there is little to choose between 50 and 60 Hz and it's just history that determined it. Once the choice is made it's difficult to change. The lower frequency is slightly better for long-distance transmission of power because the resistance of same-sized wires is slightly less. The higher frequency is slightly better because iron transformer cores can be made 20% lighter.
What is apparent shift?
Apparent shift refers to the perception of an object appearing to be in a different location than its actual position due to atmospheric refraction. This phenomenon commonly affects the visual observations of celestial objects near the horizon, causing them to appear slightly higher than they actually are. Astronomers and navigators need to account for apparent shift to make accurate measurements.
What direction must the synchroscope be travelling when the breaker is closed?
The synchroscope must be moving clockwise to indicate that the generator frequency is slightly higher than the system frequency. This ensures that when the breaker is closed, the two frequencies will synchronize properly.
How does frequency relate to pitch of a sound wave?
Frequency is the number of cycles of a wave that occur in one second. In terms of sound waves, a higher frequency corresponds to a higher pitch, while a lower frequency corresponds to a lower pitch. This means that the pitch of a sound is directly related to its frequency.
How do astronomers observe planets that are too far away to see?
Space Telescopes Planets that are orbiting stars that are far away creating fluctuations in the light that we see coming from the star. Astronomers can observe those planets by measuring the fluctuations of that light.
What is the opposite of slightly?
The opposite of slightly is considerably, greatly, wholly or completely.
What is the opposite of the adverb badly?
The adverb "well" is the usual opposite of the adverb "badly." If "badly" is used to mean "extremely or greatly" the opposite could be "slightly." E.g. He was badly bruised./He was slightly bruised.
What was the effect on the input impedance of lowering the operating frequency?
The input impedance should increase slightly for the lower frequency, when using a capacitive circuit.
What measurements does a hole have to be in a chicken coop so the chickens can get outside?
Slightly bigger than the chicken.
How can the beat frequency be calculated in a system with two sound waves of slightly different frequencies?
The beat frequency in a system with two sound waves of slightly different frequencies can be calculated by subtracting the frequencies of the two waves. The beat frequency is the difference between the two frequencies, which creates a pulsating sound when heard together.
Why would there be different published values for the normal range of a particular measurement?
Different people or organizations may have made slightly different measurements. Measurements are never 100% accurate.
Why induction motor runs slightly slower than supply frequency?
if the motor is at synchronous frequency there is no current induced in the shorted windings in the rotor so at no load its slightly less. if you drive the motor faster than synchronous speed it becomes a generator
What feature makes a water polar molecule?
the ends of the water molecule have opposite electrical charges
Why do some countries have 60hz frequency?
Technically there is little to choose between 50 and 60 Hz and it's just history that determined it. Once the choice is made it's difficult to change. The lower frequency is slightly better for long-distance transmission of power because the resistance of same-sized wires is slightly less. The higher frequency is slightly better because iron transformer cores can be made 20% lighter.
Two sound waves of equal amplitude with slightly different frequencies will result in?
A beat frequency.
What are Selena gomez's measurements?
As of April 2011, Selena Gomez's measurements were 34 inch bust, 24 inch waist, and 36 inch hips. However, measurements change all the time, and are not constant, so they might be slightly different now.
What are the measurements for a washer and dryer set?
The standard measurements for a washer and dryer set are typically around 27 inches wide, 38-39 inches tall, and 30-34 inches deep. These measurements can vary slightly depending on the brand and model of the appliances.
