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An electric arc welding has the following VI characteristic V = 9 + 7l where l is the length of arc in cm
The power source characteristic is approximated by a straight line with an open circuit voltage 36 V and a short circuit current 600 A. The optimum arc length (in mm) is _____________.
(Give the answer upto 3 decimals)
(Give the answer upto 3 decimals)
Correct answer is '12.857'. Can you explain this answer?
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Most Upvoted Answer
An electric arc welding has the following VI characteristic V = 9 + 7l...
Given V
OC
= 36 V, ISC = 600 A
Arc characteristics, V = 9 + 7l………..(2)
Put V in (1), we get
Put V in (1), we get
For maximum power, dP/dt = 0
- 63 + 189 - 49 x 2l = 0
⇒ l = 1.2857 cm
= 12.857 mm
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An electric arc welding has the following VI characteristic V = 9 + 7l...
Understanding the Problem:
We are given the VI characteristic of an electric arc welding and the power source characteristic. We need to determine the optimum arc length.
VI Characteristic:
The VI characteristic of the electric arc welding is given by the equation V = 9 + 7l, where V is the voltage and l is the length of the arc in cm.
Power Source Characteristic:
The power source characteristic is approximated by a straight line with an open circuit voltage of 36 V and a short circuit current of 600 A.
Finding the Optimum Arc Length:
To find the optimum arc length, we need to determine the point of intersection between the VI characteristic and the power source characteristic. At this point, the voltage and current values will be equal for both characteristics.
Equating Voltage:
Setting the voltage values equal, we have:
36 = 9 + 7l
Solving for l:
Rearranging the equation, we get:
7l = 36 - 9
7l = 27
l = 27/7
Converting to mm:
The given length is in cm, but we need to find the answer in mm. Converting cm to mm, we have:
l = (27/7) * 10
l ≈ 38.57 mm
Final Answer:
The optimum arc length is approximately 38.57 mm. However, the correct answer given is 12.9 mm, which suggests that there may be an error in the calculations or in the given information.
We are given the VI characteristic of an electric arc welding and the power source characteristic. We need to determine the optimum arc length.
VI Characteristic:
The VI characteristic of the electric arc welding is given by the equation V = 9 + 7l, where V is the voltage and l is the length of the arc in cm.
Power Source Characteristic:
The power source characteristic is approximated by a straight line with an open circuit voltage of 36 V and a short circuit current of 600 A.
Finding the Optimum Arc Length:
To find the optimum arc length, we need to determine the point of intersection between the VI characteristic and the power source characteristic. At this point, the voltage and current values will be equal for both characteristics.
Equating Voltage:
Setting the voltage values equal, we have:
36 = 9 + 7l
Solving for l:
Rearranging the equation, we get:
7l = 36 - 9
7l = 27
l = 27/7
Converting to mm:
The given length is in cm, but we need to find the answer in mm. Converting cm to mm, we have:
l = (27/7) * 10
l ≈ 38.57 mm
Final Answer:
The optimum arc length is approximately 38.57 mm. However, the correct answer given is 12.9 mm, which suggests that there may be an error in the calculations or in the given information.
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An electric arc welding has the following VI characteristic V = 9 + 7l where l is the length of arc in cmThe power source characteristic is approximated by a straight line with an open circuit voltage 36 V and a short circuit current 600 A. The optimum arc length (in mm) is _____________.(Give the answer upto 3 decimals)Correct answer is '12.857'. Can you explain this answer?
Question Description
An electric arc welding has the following VI characteristic V = 9 + 7l where l is the length of arc in cmThe power source characteristic is approximated by a straight line with an open circuit voltage 36 V and a short circuit current 600 A. The optimum arc length (in mm) is _____________.(Give the answer upto 3 decimals)Correct answer is '12.857'. Can you explain this answer? for Mechanical Engineering 2024 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about An electric arc welding has the following VI characteristic V = 9 + 7l where l is the length of arc in cmThe power source characteristic is approximated by a straight line with an open circuit voltage 36 V and a short circuit current 600 A. The optimum arc length (in mm) is _____________.(Give the answer upto 3 decimals)Correct answer is '12.857'. Can you explain this answer? covers all topics & solutions for Mechanical Engineering 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for An electric arc welding has the following VI characteristic V = 9 + 7l where l is the length of arc in cmThe power source characteristic is approximated by a straight line with an open circuit voltage 36 V and a short circuit current 600 A. The optimum arc length (in mm) is _____________.(Give the answer upto 3 decimals)Correct answer is '12.857'. Can you explain this answer?.
An electric arc welding has the following VI characteristic V = 9 + 7l where l is the length of arc in cmThe power source characteristic is approximated by a straight line with an open circuit voltage 36 V and a short circuit current 600 A. The optimum arc length (in mm) is _____________.(Give the answer upto 3 decimals)Correct answer is '12.857'. Can you explain this answer? for Mechanical Engineering 2024 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about An electric arc welding has the following VI characteristic V = 9 + 7l where l is the length of arc in cmThe power source characteristic is approximated by a straight line with an open circuit voltage 36 V and a short circuit current 600 A. The optimum arc length (in mm) is _____________.(Give the answer upto 3 decimals)Correct answer is '12.857'. Can you explain this answer? covers all topics & solutions for Mechanical Engineering 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for An electric arc welding has the following VI characteristic V = 9 + 7l where l is the length of arc in cmThe power source characteristic is approximated by a straight line with an open circuit voltage 36 V and a short circuit current 600 A. The optimum arc length (in mm) is _____________.(Give the answer upto 3 decimals)Correct answer is '12.857'. Can you explain this answer?.
Solutions for An electric arc welding has the following VI characteristic V = 9 + 7l where l is the length of arc in cmThe power source characteristic is approximated by a straight line with an open circuit voltage 36 V and a short circuit current 600 A. The optimum arc length (in mm) is _____________.(Give the answer upto 3 decimals)Correct answer is '12.857'. Can you explain this answer? in English & in Hindi are available as part of our courses for Mechanical Engineering.
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