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ValentinkaMS [17]
3 years ago
11

Why the number of primary turns of coil and secondary turns of coil are not made equal?​

Physics
1 answer:
nadezda [96]3 years ago
5 0

Explanation:

Since, the transformer would not change the voltage as the ratio of primary to secondary turns is proportional to the ratio of primary to secondary voltage. There may be instances of the isolation transformers or line conditioners where you could use the two coils to as a buffer to cut down noise, but without a ratio that fits your needs the non transforming transformer will just lose power at the coils.

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Copper has a specific heat of 0.385 j. A piece of copper absorbs 5000 J of energy and undergoes a temperature change from 100 Ce
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Energy= mcT
5000 = m• 0.385 • (200-100)
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3 0
3 years ago
A speedboat is moving at a rate of 45 km per hour travels a distance of 27 km. How long did it take to go to 27 km.
8090 [49]

Answer:

I think it is 1.67

Explanation:

I multiply the 45 and 27 cause it says rate of which means to multiply.

8 0
3 years ago
A heavy crate applies of 1500 N on a 25-m^2 piston . The smaller piston is 1/30 the size of the larger one . what force is neede
krok68 [10]
I don't know the name, but the opposite of gravity, if that helps!

6 0
3 years ago
Read 2 more answers
A race car completes race in 10 minutes. Its average speed is 200km/hr. How long is the racetrack?
tigry1 [53]

Answer:

33.34km

Explanation:

S=Vxt

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8 0
2 years ago
Un resorte se alarga 5 cm bajo la acción de una fuerza de 39,2 N. ¿Cuál es la constante del resorte? Si ahora la fuerza es 68,6
Lorico [155]

Answer:

k=784 N/m

\Delta x=8,8 cm

Explanation:

Usando la ley de Hook tenemos:

F=k\Delta x

Solving it for k we have:

k=\frac{F}{\Delta x}

k=\frac{39,2}{0,05}

k=784 N/m

Usando la misma ecuación y sabiendo k tenemos:

\Delta x=\frac{F}{k}

\Delta x=\frac{68,6}{784}

\Delta x=8,8 cm

Espero esto te ayude!

6 0
3 years ago
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