Which planet receives the most gravitational pull from the sun

For a 1 efficient step down transformer voltage in primary and secondary are equal current in primary and secondary are equal in

Fynjy0 [20]

The given condition for a 100% efficient step down transformer is not true.

<h3>How do Step-down Transformers work?</h3>

Because there are fewer turns in the secondary winding of a step-down transformer, the secondary voltage is lower than the initial voltage. As a result, this kind of transformer is employed to reduce the voltage to the levels intended for the circuit. Almost all power supply incorporate a step-down transformer to keep the operating voltage range of the circuit within acceptable limits. Electronic transformers and distribution systems are often where these transformers are installed (power transformers).

<h3>What Does a Step-Down Transformer Mean by Power?</h3>

Using the system voltage and current, we can calculate the power of a transformer. Volt-Amps, or VA, is the unit used to measure the power in a transformer (for larger transformers Kilo Volt-Amps, kVA).

Any transformer should, in theory, have constant power on both sides, which implies that the power available on the secondary side of the transformer should match the power available on the primary side. This also applies to step-down transformers. A step-down transformer's secondary side has a lower voltage than its primary side, hence in order to balance the transformer's total power, the secondary current would need to be increased.

<h3>What is the Step-Down Transformer's Relationship Between Voltage and Current?</h3>

In a step-down transformer, the output current is greater than the input current while the output voltage is lower than the primary voltage.

To know more about step down transformer visit:

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5 0

2 years ago

Magnetic induction is used for what?

DochEvi [55]

For radio broadcasting, in electricity meters, in any generator.

4 0

4 years ago

Imagine you are in an open field where two loudspeakers are set up and connected to the same amplifier so that they emit sound w

weeeeeb [17]

Question:

If you are 3.00 m from speaker A directly to your right and 3.50 m from speaker B directly to your left. What is the shortest distance d you need to walk forward to be at a point where you cannot hear the speakers?

Answer:

The shortest distance d you need to walk forward to be at a point where you cannot hear the speakers is 5.625 m

Explanation:

Shortest distance is given by

For constructive interference of wave, we have

$\Delta r_{construct}$ = 2nλ/2

For destructive interference of wave, we have

$\Delta r_{destruct}$ = (2n+1)λ/2

That is the difference in the number of wavelength between constructive and destructive interference is λ/2

We note that our positioning is 3.0 m from the first speaker and 3.5 m from the second, Which is of the form 2n and 2n + 1

Therefore when we walk forward away from the two speakers, we cannot hear the speakers at

Δr = λ/2 = r $_B$ - r $_A$

Which is the distance between the points where we have constructive and destructive interference or where there is destructive interference between the waves

Where:

r $_A$ = Distance from speaker A and

r $_B$ = Distance from speaker B

λ/2 = (344 m/s /688 Hz)/2

= 1/4

For

λ/2 = r $_B$ - r $_A$ we have

√(3.5² +d²) - √(3²+d²) = 1/4

∴ d = 5.625 m

6 0

3 years ago

If an object is moving at 2m/s towards a porcelain vase, do you think it will have enough momentum to brake the vase?

Alex Ar [27]

Answer: No

Explanation:

Momentum $p$ refers to how much force is needed to change the motion of a body or object by changing its direction or braking it. In addition, momentum is directly proportional to the mass $m$ and the velocity $v$ :

$p=mv$

Now, assuming both the object and the porcelain vase have the same velocity $v=2m/s$ but different mass, and assuming the mass of the vase is greater than the mass of the object; the momentum of the porcelain vase will be also greater than the momentum of the object.