Answer:
The correct answer is B. Hope this helps. Please tell me if I am right or wrong. Can I have brainliest if I am right?
Explanation:
Answer:
The speed varies depending on atmospheric conditions; the most important factor is the temperature. Humidity has little effect on the speed of sound, nor does air pressure by itself. Air pressure has no effect at all in an ideal gas approximation.
A circuit breaker may need to switch short circuit currents as high as <u>fifteen (15)</u> times its rated current.
<u>Rated current</u> is basically the<u> maximum limiting current</u>. If the current exceeds its maximum limit, there will be overheating and, in severe circumstances, a <u>short circuit</u> will result.
A<u> circuit breaker</u> is a type of <u>electrical safety</u> device used to guard against short circuit damage to an electrical circuit.
An example of circuit breakers that are most frequently used in low voltage circuits is <u>Miniature Circuit Breakers</u> (MCBs).
These are the switches that automatically turn off when the current in a circuit exceeds the<u> safe limit</u>.
So, to ensure complete protection against <u>short circuits</u> & <u>overloading</u>, a circuit breaker may need to switch short circuit current as high as fifteen times its rated current.
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Currently, one major disadvantage of renewable energy resources is that renewable energy resources<span> are more expensive
than fossil fuels.
</span>
d. are more expensive
Answer:
Magnetic force, attraction or repulsion that arises between electrically charged particles because of their motion. It is the basic force responsible for such effects as the action of electric motors and the attraction of magnets for iron. Electric forces exist among stationary electric charges; both electric and magnetic forces exist among moving electric charges. The magnetic force between two moving charges may be described as the effect exerted upon either charge by a magnetic field created by the other.