Electric Charge Conserved means that no case has ever been found.
Explanation:
- The electric power can neither be built nor destroyed.
- But it can be saved and used whenever required, the closed-circuit system is movement of charges tends to current, which means the flow of charge, but the charges are still existing in the closed system, the charges in the isolated does not changes and it is always filled with charges, only on power trigger the charges moves.
- Found in material like copper, iron, etc.
- This is based on the rule of conservation of power that defines that, power can neither be built nor it can be destroyed, but it can be transformed into one order to another order.
- Hence this case is found in all electrical circuits.
- This fails in nonconductors like wooden, glass and plastic with no flow of charges in them.
Answer:
Explanation:
Refraction: It is a process in which light ray travel from one medium to another medium.
When a light travel form one medium to another medium then the speed of light changes.
When a light travel from rare to denser medium then the light bend towards normal .
When a light travel form denser to rare medium then the light ray bend away from the normal.
Refractive index:It is a ratio of velocity of light in vacuum to the velocity of light in medium .It is a measure of change in speed of light when it passes from vacuum into material.It is represented by "n''.
Mathematical representation:
Where n=Refractive index of material
c=Velocity of light in vacuum
v=Velocity of light in medium
I assume here that the engine operates following a Carnot cycle, which achieves the maximum possible efficiency.
Under this assumption, the efficiency of the engine (so, the efficiency of the Carnot cycle) is given by
where
is the cold temperature
is the hot temperature
For the engine in our problem, the cold temperature is 313 K while the hot temperature is 425 K, so the effiency of the engine is
Answer:
A. or B. on #6, not exactly sure though