Answer:
a. push
Explanation:
Voltage is the force or pressure that is responsible for pushing the charge or electrons to flow in a closed-looped electrical circuit. This flow of electrons (charge) is called the electric current. It is also defined as the difference in electric potential per unit charge between two points in an electric field.
Answer:
Hertz extended Maxwell's idea that light is produced by the interaction of electromagnetic fields. Waves produced a diffraction pattern. Results supported the wave theory of light.
Answer:
All of teh above except A
Explanation:
Answer:
Explanation:
As we know that the power emitted by the source is given as
now we know that
now we know that energy density is given as
now we have
intensity is defined as
now we have
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now we have
here we have
now we have
Answer:
<em>The distance of the light is 9.4608 x 10^25 m</em>
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Explanation:
Time taken by the light = 10 billion years = 10 x 10^9 years
speed of light = 3 x 10^8 m/s
speed of light in m/years is = (3 x 10^8)/(60 x 60 x 24 x 365) = 9.4608 x 10^15 m/year
distance = speed x time
therefore, the distance of this light = 10 x 10^9 x 9.461 x 10^15 = <em>9.4608 x 10^25 m</em>
