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sergeinik [125]
3 years ago
14

Mains electricity is an ac supply. Explain the difference between direct and alternating potential difference.

Physics
1 answer:
Gennadij [26K]3 years ago
5 0

Direct current (DC) is the flow of electric charge in only one direction. It is the steady state of a constant-voltage circuit. Most well-known applications, however, use a time-varying voltage source. Alternating current (AC) is the flow of electric charge that periodically reverses direction.

<h2><em>#</em><em>L</em><em>E</em><em>T</em><em>S</em><em> </em><em>STUDY</em></h2>

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The sense of equilibrium responds to movements of the head. It is divided into two types--static and dynamic equilibrium. Descri
Sonja [21]

Answer:

nodding of head ,yes- static equilibrium

nodding of head, no- dynamic equilibrium.

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static equilibrium monitors head position when body is not moving .

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5 0
3 years ago
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Name the spectrum of radiations that includes both microwaves and infrared radiation.
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light

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6 0
3 years ago
Suppose a piano tuner hears 2 beats per second when listening to the combined sound from her tuning fork and the piano note bein
maksim [4K]

Answer:

further tightening is required.

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The beat created / sec = difference of frequencies

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on further tightening  difference decreases because tightening increases the frequency  of piano hence   further  tightening is required for resonance.

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