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3 years ago

8

How can velocity change even if speed stays the same?

1 answer:

VARVARA [1.3K]3 years ago

5 0

Answer:

the change of direction it's going

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4 years ago

Which statement best describes the forces in this picture

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4. What is the acceleration of a plane that changes velocity from 75 m/s to

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3 years ago

If a step-up transformer has a primary coil with 15 turns, how many turns would be required in the secondary coil in order to in

vagabundo [1.1K]

Answer:

$N_2=30turns$

So option (b) will be correct option

Explanation:

We have given that there is a step up transformer in which number of turns in primary coil is 15

That is, $N_1=15$

Primary voltage $V_1=80volt$ , and secondary voltage $V_2=160volt$

We have to find the number of turns in the secondary \

We know that for the transformer

$\frac{N_1}{N_2}=\frac{V_1}{V_2}$

$\frac{15}{N_2}=\frac{80}{160}$

$N_2=30turns$

So option (b) will be correct option

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3 years ago