What instrument converts electrical energy to sound or image signals in a radio or television?

Answers

Answer 1

Answer:

Answer:

In a radio or television, the instrument that converts electrical energy into sound signals or image signals is called a transducer. Transducers are devices that can convert one form of energy into another.

In the context of television, a television camera is an example of a transducer that converts light energy (captured through a lens) into electrical signals representing images or video. These electrical signals can then be processed and transmitted for display on a television screen.

In the context of a radio, a microphone is an example of a transducer that converts sound waves (acoustic energy) into electrical signals. These electrical signals, which represent sound, can then be amplified, modulated, and broadcast over the radio waves for reception by a radio receiver.

So, depending on whether you're referring to a television or a radio, the specific transducer used for converting electrical energy to sound or image signals may vary, but the concept of a transducer applies to both.

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Process of changing a liquid into a gas

Answers

Boiling. The temperature at which a liquid begins to boil is called the boiling point.

Answer:

Evaporation jsut took teST LOL

Explanation:

Which of the following does not accurately depict a scientific theory?A. Theories are tested over and over again.
B. Theories are supported in many ways.
C. Theories may be changed or replaced if new evidence is found.
D. Theories are absolute truths.

Answers

Scientific theories are not absolute and unquestionable truths: they are the best explanation of the data, but they can be challenged if new data is discovered or if a new theory is found that fits to and explains the data even better!
The best answer is d: this is not an accurate description of a scientific theory!

Calculate (A⃗ ×B⃗ )⋅C⃗ for the three vectors A⃗ with magnitude A = 4.86 and angle θA = 23.5 ∘ measured in the sense from the +x - axis toward the +y - axis, B⃗ with B = 4.02 and θB = 60.1 ∘, and C⃗ with magnitude C = 6.02 and in the +z - direction. Vectors A⃗ and B⃗ are in the xy-plane.

Answers

Answer:

(A⃗ ×B⃗ )⋅C⃗ = 69.868

Explanation:

We simplify the cross product first, thereafter the solution of the cross product is now simplified with the dot product as shown in the step by step calculation in the attachment

Light enters water from air at an angle of 25° with the normal, Θ1. If water has an index of refraction of 1.33, determine Θ2.A) 18.5°
B) 34.2°
C) 31.8°
D) 71.5°

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By Snell's law:

η = sini / sinr. i = 25, η = 1.33

1.33 = sin25° / sinr

sinr = sin25° / 1.33 = 0.4226/1.33 = 0.3177 Use a calculator.

r = sin⁻¹(0.3177)

r ≈ 18.52°

Option A.

God's grace.

An electric kettle. The input energy is 10 Joules. The useful output energy is heat 9Joules. Wasted energy is sound 1 Joules.

Answers

Answer:

Efficiency = 90 %

Wasted energy = 10 %

Explanation:

Since we have the input energy and useful output energy of the electric kettle, the only thing we are required to calculate here is its efficiency. This is gotten from

E = useful output energy/input energy × 100

E = 9/10 × 100 = 90 %

The percentage of wasted energy is

W = wasted energy/input energy × 100

W = 1/10 × 100

W = 10 %

A pair of equal charges are separated by .75 m. There's a 2500 N force acting on them. What is the strength of the charge? Plz explain how you got the answer too.

Answers

The magnitude of each charge is 3.94 x $10^(-4)$ coulombs.

We have a pair of equal charges are separated by 0.75 m and there's a 2500 N force acting on them.

We have to strength of the charge.

What is the formula to calculate the force between two point charges separated by a some distance?

According to Coulomb's law, the formula to calculate the force between the two point charges (say q and Q) separated by a some distance (say r) is given by -

F = $(1)/(4\pi \epsilon_(o) ) (qQ)/(r^(2) )$