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Carnot Cycle is an ideal thermodynamic cycle that describes the functioning of a perfect heat engine. In the refrigeration system we need a cooling effect. So, in effect, refrigeration cycle is reverse in process than that of a carnot cycle, and ofcourse not ideal. Air-conditioners also run on the similar cycle as refrigerators.
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Why freqvency in AC and Why not in DC Voltage?
Frequency with AC is how many times in one second it goes thru a cycle of reversing polarity twice. DC does not reverse, in other words the frequency is zero.
Explain the output wave form a circuit which has a zener diode in reverse biased?
A zener diode has a relatively constant reverse voltage, at the designated zener voltage. If you had a circuit, say, with an AC source, a resistor, and a zener, the waveform across the zener would be the AC source, clipped at the reverse bias zener voltage, and clipped again at the forward bias voltage, typically about 0.7 V.
How do you make ac current flow in only one direction?
No, they reverse their direction twice in every cycle, so with 50 Hz ac the electrons reverse 100 times every second. They don't have to move very far, because when a dc current flows in a wire the electrons might only move at 1 inch per second.
How does DC differs from AC?
The AC current oscillates with cycle time to time.
Does your ac need freon to run the heater in your home?
Only if you have a heat pump system which is basically an air conditioner which can run in reverse, absorbing heat from outdoors and discharging it indoors via the refrigeration cycle.
How does a diode act as a half wave rectifier?
The diode is a unidirectional device it allows current to pass through it only when it is forward biased and does not allow when reverse biased when ac signal is supplied in the positive half cycle of the ac wave signal the diode will b in forward biase n in the negative half cycle it is in reverse bias .Hence it allows only the positive half cycle current to flow through it the resultant wave form will b only in one direction ,i.e,dc signal with ripples. only half of the wave is rectified hence it acts as a half wave rectifier
What do you need to convert your razor from 60 cycle ac to 50 cycle ac?
A: There are devices transformers that can safely convert power the reason being that a 50 cycle the razor will saturate causing heating and blow.
Reverse direction on a 480 ac motor?
Reverse any two of the lead wires at the motor junction box.
Can diode work on ac power supply?
diodes conduct electricity in only one direction but as ac change direction in each of its cycle diodes can only conduct half of its cycle which will give u a pulsating dc. but if dc is mixed with ac and if it can put whole of its cycle in positive direction diode can conduct ac. so diodes are usually used to produce dc from ac.
Why does your ac unit not cycle off and on?
Bad compressor
Specify AC cycle in terms of degrees?
0 to 360 a complete circle is one cycle
Why should current be reversed in an AC circuit?
The current in any AC circuit reverses every cycle.
