Technician A says that bursting of clutch friction facings is often caused by coasting a truck with the clutch pedal depressed.
1 answer:
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Answer:
The average induced emf is 29.06 V
Explanation:
Given;
radius of the circular loop, r = 12.0 cm = 0.12 m
magnetic field strength, B = 1.8 T
time interval = 2.8 ms = 0.0028 s
Area of the circular loop, A = πr² = π (0.12)² = 0.0452 m²
where;
B is magnetic field
A is area
t is time
substitute the values given in the above equation to calculate the average emf that will be induced in the wire loop during the extraction process.
Therefore, the average induced emf is 29.06 V
Answer:
Explanation:
Given:
- force applied on the copper wire,
- cross sectional area of the wire,
- Poisson's ratio,
- we have, Young's modulus,
<u>Stress induced due to the applied force:</u>
<u>Now the longitudinal strain:</u>
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Now from the relation of Poisson's ratio:
where:
lateral strain
..................(1)
<u>Now we find the diameter of the wire:</u>
<u>When the tensile load is applied its diameter decreases:</u>
The lateral strain is also given as,
Now the final diameter will be:
Now the ratio: