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Snezhnost [94]
3 years ago
13

A transformer is a device that increases or decreases voltage. t/f

Physics
2 answers:
sammy [17]3 years ago
6 0
<span>A transformer is a device that increases or decreases voltage. t/f 

The answer is: True my dude
</span>
Dmitry_Shevchenko [17]3 years ago
5 0

Answer:

True.

Explanation:

A transformer is used either to increase or decrease the voltage.

It has two separate sets of coils of wire. The coils connected to the input voltage are called  primary and the output coils are called  secondary.

If number of windings (or coils) of wire in primary are less than the windings in secondary, it is a step up transformer because output voltage will be more than the input voltage. In this case the output voltage given out by the secondary will be more than the primary.

If the primary coils are more than the secondary, it is called a step down transformer. In this case, secondary voltage (output voltage) will be less than the primary.

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What does the m stand for in the enthalpy equation?
Morgarella [4.7K]

Answer:

Use the formula ∆H = m x s x ∆T to solve.

Explanation:

Once you have m, the mass of your reactants, s, the specific heat of your product, and ∆T, the temperature change from your reaction, you are prepared to find the enthalpy of reaction. Simply plug your values into the formula ∆H = m x s x ∆T and multiply to solve.

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3 years ago
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ch4aika [34]

Explanation:

Boyle's law can be stated as the "volume of a fixed mass of a gas varies inversely as the pressure changes if the temperature is constant". It is mathematically expressed as;

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Charles's law states that the volume of a fixed mass of a gas varies directly as its absolute temperature if the pressure is constant.

It is mathematically expressed as;

            \frac{V1}{T1}    = \frac{V2}{T2}  

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3 years ago
The magnetic field is strong near the ____ of a magnet.
shtirl [24]

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If you see the field lines we can see the field lines start from the North Pole run parallel and end at the South Pole.  The field lines are concentrated more at the poles hence the magnetic field intensity or the magnetic field itself is more at the poles than any other part.

3 0
3 years ago
HELP what is the answer to this question?
Dennis_Churaev [7]
I think it’s c sorry if wrong
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How does the earth move within the solar system?
Morgarella [4.7K]
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