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kogti [31]
3 years ago
9

An inductor is connected to an AC generator. As the generator's frequency is increased, the current in the inductor A. Increases

, B. Decreases C. Does not change.
Physics
1 answer:
Luda [366]3 years ago
6 0

Answer:

B) Decrease

Explanation:

Resistance offered due to inductor in any AC circuit is given as

X_L = \omega L

here we know that

\omega = angular frequency

\omega = 2\pi f

now by ohm's law we know that

i = \frac{V}{X}

here we have

i = \frac{V}{\omega L}

so current is inversely depends on the frequency of AC

so if frequency is increased then the current will decrease

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Tanzania [10]

Answer:

  1. In order to find average velocity we use the equation:
  2. avg =  \frac{change \: in \: x}{change \: in \: time}
  3. She went from 4.0m to 16.0 m making her delta x = 12.0 m
  4. She did that in 4s
  5. Hence 12/4 = 3 m/s

8 0
3 years ago
I need sum help on this
makkiz [27]
It’s a I hope this helps you out
3 0
3 years ago
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With light microscopy, if the objective lens (lens closest to the specimen) magnifies 40-fold, and the eyepiece lens magnifies 1
Fed [463]

The final magnification will be 400-fold or 400 times the original size of the object.

For magnifying smaller objects, a compound microscope is used.

A compound microscope consists of an objective and an eyepiece, whose diagram is shown in the adjoining image.

The lens  near  the object is called an objective and the other one is the eyepiece.

Let the magnification of the objective be m1

Let the magnification of the eyepiece be m2

The final magnification by the microscope, M, will be

M = m1 x m2

Putting the values in the above equation

M = 40 x 10

M= 400

Thus, the final magnification will be 400-fold or 400 times the original size of the object.

To know more about "optical instruments", refer to the link given below:

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6 0
2 years ago
The temperature of water in a beaker is 45°C. What does this measurement represent?
julia-pushkina [17]

Your answer would be C, with a quick lookup of this question online lol
8 0
3 years ago
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A 76g ball is attached to a string that is 1.5m long. It is spun so that it completes two full rotations every second. What is t
Marat540 [252]

The centripetal acceleration = 236.63 m/s²

The force = 17.98 N

<h3>Further explanation</h3>

Given

mass = 76 g = 0.076 kg

r = 1.5 m

f = 2 rps = 2 rotation per second

Required

The centripetal acceleration

The Force tension

Solution

Centripetal force is a force acting on objects that move in a circle in the direction toward the center of the circle  

\large {\boxed {\bold {F = \frac {mv ^ 2} {R}}}

F = centripetal force, N  

m = mass, Kg  

v = linear velocity, m / s  

r = radius, m  

The speed that is in the direction of the circle is called linear velocity  

Can be formulated:  

\tt \displaysyle v = 2 \pi.r.f

r = circle radius  

f = rotation per second (RPS)  

The linear velocity : 2 x 3.14 x 1.5 x 2 =18.84 m/s

The centripetal acceleration : ac = v²/R = 236.63 m/s²

The force : F = m x ac = 0.076 x 236.63 = 17.98 N

4 0
3 years ago
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