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3 years ago

Which is part of an AC generator?

Physics

2 answers:

raketka [301]3 years ago

8 0

Armature is part of an AC generator

Answer: Option A

<u>Explanation: </u>

Armature that revolves between two poles of magnet in an ac generator and plays a prime role in converting mechanical energy into electrical. An AC generator works on the principles of electromagnetic induction.

When the armature rotates in between two magnets facing each other with opposite polarities, it rotates on the axis which is perpendicular to the magnetic field's direction.

With this, an electromotive force (emf) is induced in the armature and thus, the electric current flows through the rings to the wires and we get an ac current. Hence, the prime role in producing the ac current in the generator is done by the armature and its rotatory motion.

Katen [24]3 years ago

6 0

There is no such thing as an AC Generator, if its a generator, its DC. I think you are talking about an AC Alternator, in which case the answer would be -wrong answer, deleted-

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3 years ago

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2 years ago

The normal is a line perpendicular to the reflecting surface at the point of incidence.

ladessa [460]

Answer:

True

Explanation:

The normal line is defined as the line which is perpendicular to the reflecting surface at the point where the incident ray meet with the reflecting surface.

The angle of incident is defined as the angle which is subtended by the incident ray with respect to the normal ray by consider the normal ray as the base line and angle is measured from the point where incident ray is incident on the reflecting surface of the mirror.

Similarly reflecting ray can be defined as the ray which is reflected after the incident of a ray and the angle subtended by the reflecting ray is measure with respect to normal ray by considering normal ray as a base line.

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3 years ago

State two reasons why the rod is not in equilibrium

Lubov Fominskaja [6]

Answer:

For equilibrium the net torque on the rod must be zero. So the 100N forces should on either side of the pivot point i.e. one on the left and one the right, and in same direction.

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2 years ago

Odysseus has returned from his epic voyage across the seas and gets off his boat at the end of a 50 meter pier. His beloved Pene

OlgaM077 [116]

Answer:

We know that:

Distance between Odysseus and Penelope = 50m

Speed of Odysseus = So = 4m/s

Speed of Penelope = Sp = 6m/s.

Now we want to find the equation of motion for Odysseus.

First, let's find the amount of time that he is moving, we know that when he meets with Penelope, he will stop moving.

Now they weel meet each other when the total distance traveled by both of them is equal to 50m.

Then, recalling that:

Distance = Time*speed.

50m = 4m/s*t + 6m/s*t = 10m/s*t

t = 50m/10m/s = 5s

They will move for 5 seconds.

Now we can write the movement equation for Odysseus as:

p(t) = 4m/s*t + p0 for (0s ≤ t ≤ 5s)

Where p0 is the initial position of Odysseus, and because we can put our coordinate axis where we want, we can define p0 = 0m.

Then the position of Odysseus is:

P(t) = 4m/s*t if 0s ≤ t ≤ 5s

P(t) = 4m/s*5s = 20m if t > 5s.

The second piece says that for t larger than 5 seconds, he will not move (at least for a given amount of time)

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3 years ago