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2 years ago

Give two alterations in a generator to produce more electromotive force

Physics

2 answers:

elixir [45]2 years ago

6 0

Answer:

Two ways by which the emf in an AC generator can be increased:

(i)The speed of the rotation of the coil is increased.

(ii)More powerful magnet is used to increase the strength of the magnetic field.

그것이 당신에게 도움이되기를 바랍니다 :)

가장 똑똑한 것으로 표시하십시오 :)

좋은 하루 되세요 :)

Mrac [35]2 years ago

4 0

Answer:

Rotating the coil faster

Increasing the number of coils

Using stronger magnets

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sergejj [24]

Answer:

x2=0.732m

Explanation:

We can calculate the spring constant using the equilibrium equation of the block m1. Since the spring is in equilibrium, we can say that the acceleration of the block is equal to zero. So, its equilibrium equation is:

$m_1g-k\Delta x_1=0\\\\\implies k=\frac{m_1g}{\Delta x_1}\\\\k=\frac{(7.5kg)(9.8m/s^{2})}{0.84m-0.69m}=490N/m$

Then using the equilibrium equation of the block m2, we have:

$m_2g-k\Delta x_2=0\\\\\\implies x_2=x_0+\frac{m_2g}{k} \\x_2=0.69m+\frac{(2.1kg)(9.8m/s^{2})}{490N/m}= 0.732m$

In words, the lenght x2 of the spring when the m2 block is hung from it, is 0.732m.

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2 years ago

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sweet [91]

Answer:

the answer is b.

=》distance = 10 miles

=》displacement = 0 miles

Explanation:

=》total distance = 2 + 3 + 5 = 10 miles

( sum of total miles covered )

=》total displacement = shortest distance from starting point to the destination. but here both starting point and destination are same so, total displacement = 0 miles

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2 years ago

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Give two alterations in a generator to produce more electromotive force​

Give two alterations in a generator to produce more electromotive force