Electrical Engineering (EE) Exam > Electrical Engineering (EE) Questions > The spiraling of the conductors causes ______...
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The spiraling of the conductors causes __________.
- a)increase in resistance
- b)increase in frequency
- c)increase in voltage
- d)increase in current
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
The spiraling of the conductors causes __________.a)increase in resist...
Spiraling of conductor:
- The overhead transmission line needs a conductor which is light in weight and also has greater conductivity. For this spiraling of the conductor is done.
- It is a process in which the core is of the material which has greater conductivity while the outer strands are of lighter material.
- ACSR (aluminum-conductor-steel-reinforced) is one of the most used conductors in transmission lines.
- It consists of alternate layers of stranded conductors, spiraled in opposite directions to hold the strands together, surrounding a core of steel strands.
- The purpose of introducing a steel core inside the stranded aluminum conductors is to obtain a high strength-to-weight ratio.
- A stranded conductor offers more flexibility and is easier to manufacture than a solid large conductor.
- Since the resistance is inversely proportional to the cross-sectional area, therefore the total resistance increases due to spiraling.
Most Upvoted Answer
The spiraling of the conductors causes __________.a)increase in resist...
Explanation:
Effect of Spiraling Conductors on Resistance:
- When conductors are spiraled, the length of the conductor increases due to the spiraling effect.
- The increase in length leads to an increase in the resistance of the conductor.
- This is because resistance is directly proportional to the length of the conductor.
Ohm's Law:
- According to Ohm's Law, resistance (R) is given by the formula R = V/I, where V is voltage and I is current.
- An increase in resistance will cause a decrease in current for a given voltage.
- This is because as resistance increases, the flow of current is impeded.
Impact on Voltage and Frequency:
- The spiraling of conductors primarily affects resistance and current, rather than voltage and frequency.
- Voltage is typically kept constant in a circuit, and the frequency is determined by the power supply and the components used.
- Therefore, the main impact of spiraling conductors is on the resistance and current in the circuit.
In conclusion, the spiraling of conductors causes an increase in resistance, which ultimately affects the flow of current in the circuit. This can have implications for the overall performance and efficiency of the electrical system.
Effect of Spiraling Conductors on Resistance:
- When conductors are spiraled, the length of the conductor increases due to the spiraling effect.
- The increase in length leads to an increase in the resistance of the conductor.
- This is because resistance is directly proportional to the length of the conductor.
Ohm's Law:
- According to Ohm's Law, resistance (R) is given by the formula R = V/I, where V is voltage and I is current.
- An increase in resistance will cause a decrease in current for a given voltage.
- This is because as resistance increases, the flow of current is impeded.
Impact on Voltage and Frequency:
- The spiraling of conductors primarily affects resistance and current, rather than voltage and frequency.
- Voltage is typically kept constant in a circuit, and the frequency is determined by the power supply and the components used.
- Therefore, the main impact of spiraling conductors is on the resistance and current in the circuit.
In conclusion, the spiraling of conductors causes an increase in resistance, which ultimately affects the flow of current in the circuit. This can have implications for the overall performance and efficiency of the electrical system.
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