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3 years ago

How are we able to break wire by repeated bending

Physics

2 answers:

Arlecino [84]3 years ago

6 0

Answer:

We are able to break it because wire is elastic which means that it stretches. The more we stretch it the more the material comes off.

Explanation:

DIA [1.3K]3 years ago

3 0

Answer:

Repetitive bending cause metal fatigue which is responsible for the break of wire.

Explanation:

Metal fatigue is defined as the weakening of metal when cyclic load is applied on it. Due to metal fatigue cracks are grown in the structure and these cracks become the reason of metal breaking.

Moreover, If the repetitive bending is too fast, heat is produced. This heat changes the structure of atoms in the metal and make it more brittle. That’s why metals break due to repetitive bending.

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3 years ago

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Explanation:

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3 years ago

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Answer:

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5 0

3 years ago

A solenoid with an inductance of 8 mH is connected in series with a resistance of 5 Ω and an EMF forming a series RL circuit. A

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Answer:

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and by the lenz's law direction of induced EMF is opposite to the applied EMF

Explanation:

given data

inductance = 8 mH

resistance = 5 Ω

current = 4.0 A

time t = 0

current grow = 4.0 A to 10.0 A

to find out

value and the direction of the induced EMF

solution

we get here induced EMF of induction is express as

E = - L $\frac{dI}{dt}$ ...................1

so E = - L $\frac{I2 - I1}{dt}$

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E = - 8 × $10^{-3}$ $\frac{10 - 4}{0.2*10^{-3}}$

E = -40 × 6

E = -240

take magnitude

induced EMF = 240 V

and by the lenz's law we get direction of induced EMF is opposite to the applied EMF

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3 years ago

A lawn roller in the form of a thin-walled, hollow cylinder with mass M is pulled horizontally with a constant horizontal force

olga nikolaevna [1]

Answer:

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3 years ago

How are we able to break wire by repeated bending​

How are we able to break wire by repeated bending