Physics
The electric power is generated at 11 kV because :
- voltage higher than 11 kV causes insulation difficulties
- voltage lower than 11 kV involves a very high current
- it reduces the loss of energy in the form of heat
- both (1) and (2)
Household Circuits
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Answer
both (1) and (2)
Reason — The electric power is generated at 11 kV because :
- voltage higher than 11 kV causes insulation difficulties.
- voltage lower than 11 kV involves a very high current.
Ohm's Law states that current (I) is inversely proportional to voltage (V) for a given resistance (R), so lower voltage levels would require higher currents to deliver the same amount of power and loss of energy due to heat will increase.
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