Instead of converting kinetic energy into thermal energy by using conventional brakes, one can try to convert it into electrical energy by means of a generator. Consider a capacitor, which can store the kinetic energy of a car that is slowed down from 200 km/h to 0 km/h. Assume that the voltage may not exceed 1 kV. Which area, which dimensions of the capacitor are required using a 5 nm gap between the plates and a dielectric material with e=5?
Instead of converting kinetic energy into thermal energy by using conventional brakes, one can try to convert it into electrical energy by means of a generator. Consider a capacitor, which can store the kinetic energy of a car that is slowed down from 200 km/h to 0 km/h. Assume that the voltage may not exceed 1 kV. Which area, which dimensions of the capacitor are required using a 5 nm gap between the plates and a dielectric material with e=5?
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Instead of converting kinetic energy into thermal energy by using
conventional brakes, one can try to convert it into electrical energy by
means of a generator. Consider a capacitor, which can store the kinetic
energy of a car that is slowed down from 200 km/h to 0 km/h. Assume that
the voltage may not exceed 1 kV. Which area, which dimensions of the
capacitor are required using a 5 nm gap between the plates and a dielectric
material with e=5?
Recharge the battery (400 V,100 kWh) of an electric car through a copper cable (10 m length, 3 mm diameter). Keep theohmic losses below 1 kW to avoid cable meltdown. How long does the charging take? Which
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