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borishaifa [10]
2 years ago
11

6) Repeat experiment 5) a) but now use the stored energy meter. Why do you think the change takes place. charge remains constant

across the plates but voltage will increase as separation increases. As voltage increases, stored energy increases. Where does this energy come from / go to?
Physics
1 answer:
PilotLPTM [1.2K]2 years ago
5 0

Answer:

the energy comes from the increase in the electric field

Explanation:

The capacitance is

      C = ε₀ A / d

The electric charge on the condenser plates

    Q = C ΔV

     

The stored electrical energy is

       U = ½ C ΔV²

       ΔV = E d

     U = ½ (ε₀ A / d) (E d)²

    U = ½ ε₀ A d E²

We see that the stored energy is proportional to the square of the electric field, so the capacitor can increase its energy with increasing voltage

In short, the energy comes from the increase in the electric field

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The answer is speed: 4.7 km/h, velocity: 3.3 km/h.

Distances and time are given:
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The speed can be expressed as a distance (d) divided by time (t). The average speed (s) is total distance travelled divided by time:
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The average velocity (v) is total displacement (d₁) from the starting point divided by time. Since Mary's starting point was home, and she walked to the supermarket, which is 5.0 kilometers from her own home, her displacement is 5 km:
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Vitek1552 [10]
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Colt1911 [192]

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