Electrical Engineering (EE) Exam > Electrical Engineering (EE) Questions > If the height of transmission tower is increa...
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If the height of transmission tower is increased:
- a)the line capacitance and inductance will not change
- b)the line capacitance will decrease and line inductance will increase
- c)the line capacitance will decrease but line inductance will remain unchanged
- d)the line capacitance will increase but line inductance will decrease
Correct answer is option 'C'. Can you explain this answer?
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Most Upvoted Answer
If the height of transmission tower is increased:a)the line capacitanc...
Explanation:
When the height of a transmission tower is increased, it affects the line capacitance and inductance. The line capacitance is the ability of the line to store electric charge, while the line inductance is the ability of the line to store magnetic energy. The relationship between the height of the transmission tower and the line capacitance and inductance is explained as follows:
Effect on line capacitance:
- The capacitance of a transmission line is directly proportional to the spacing between the conductors and inversely proportional to the height of the tower.
- When the height of the tower is increased, the spacing between the conductors remains the same, but the distance between the conductors and the ground increases.
- As a result, the capacitance of the line decreases because the electric field between the conductors and the ground weakens.
Effect on line inductance:
- The inductance of a transmission line is directly proportional to the height of the tower and inversely proportional to the spacing between the conductors.
- When the height of the tower is increased, the distance between the conductors and the ground increases, but the spacing between the conductors remains the same.
- As a result, the inductance of the line remains unchanged.
Conclusion:
Based on the above explanation, we can conclude that when the height of the transmission tower is increased:
- The line capacitance will decrease because the distance between the conductors and the ground increases.
- The line inductance will remain unchanged because the spacing between the conductors remains the same. Therefore, option 'C' is the correct answer.
When the height of a transmission tower is increased, it affects the line capacitance and inductance. The line capacitance is the ability of the line to store electric charge, while the line inductance is the ability of the line to store magnetic energy. The relationship between the height of the transmission tower and the line capacitance and inductance is explained as follows:
Effect on line capacitance:
- The capacitance of a transmission line is directly proportional to the spacing between the conductors and inversely proportional to the height of the tower.
- When the height of the tower is increased, the spacing between the conductors remains the same, but the distance between the conductors and the ground increases.
- As a result, the capacitance of the line decreases because the electric field between the conductors and the ground weakens.
Effect on line inductance:
- The inductance of a transmission line is directly proportional to the height of the tower and inversely proportional to the spacing between the conductors.
- When the height of the tower is increased, the distance between the conductors and the ground increases, but the spacing between the conductors remains the same.
- As a result, the inductance of the line remains unchanged.
Conclusion:
Based on the above explanation, we can conclude that when the height of the transmission tower is increased:
- The line capacitance will decrease because the distance between the conductors and the ground increases.
- The line inductance will remain unchanged because the spacing between the conductors remains the same. Therefore, option 'C' is the correct answer.
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Community Answer
If the height of transmission tower is increased:a)the line capacitanc...
Concept:
- The inductance of a transmission line is independent of the height of the transmission tower.
- The capacitance of the transmission line is dependent on the height of the transmission tower.
- If tower height increases then the distance between the current carrying wire and ground increases, and line-to-ground capacitance decreases, as capacitance is inversely proportional to the distance between the line and earth.
- While there is no effect on line to line capacitance.
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If the height of transmission tower is increased:a)the line capacitance and inductance will not changeb)the line capacitance will decrease and line inductance will increasec)the line capacitance will decrease but line inductance will remain unchangedd)the line capacitance will increase but line inductance will decreaseCorrect answer is option 'C'. Can you explain this answer?
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If the height of transmission tower is increased:a)the line capacitance and inductance will not changeb)the line capacitance will decrease and line inductance will increasec)the line capacitance will decrease but line inductance will remain unchangedd)the line capacitance will increase but line inductance will decreaseCorrect answer is option 'C'. Can you explain this answer? for Electrical Engineering (EE) 2024 is part of Electrical Engineering (EE) preparation. The Question and answers have been prepared according to the Electrical Engineering (EE) exam syllabus. Information about If the height of transmission tower is increased:a)the line capacitance and inductance will not changeb)the line capacitance will decrease and line inductance will increasec)the line capacitance will decrease but line inductance will remain unchangedd)the line capacitance will increase but line inductance will decreaseCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Electrical Engineering (EE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for If the height of transmission tower is increased:a)the line capacitance and inductance will not changeb)the line capacitance will decrease and line inductance will increasec)the line capacitance will decrease but line inductance will remain unchangedd)the line capacitance will increase but line inductance will decreaseCorrect answer is option 'C'. Can you explain this answer?.
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