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30VAC is not equal and will never be equal to 30VDC. If you rectify 30v ac to DC you will get a voltage lower than 30v because there would be a voltage drop across the rectifier=diode,capacitor,resistor and transistors or thyristor, depending on the make of the rectifier.
AnswerAs the questioner makes no mention using a rectifier, yes, 30 V a.c. is exactly equivalent to 30 V d.c. This is because a.c. voltages are root-mean-square values (unless otherwise stated) which, by definition, correspond to d.c. voltages.
What else can I help you with?
How 5 volts DC and 5 volts AC are almost identical?
Both 5 volts DC and 5 volts AC represent the same voltage level of 5 volts. However, the key difference lies in their waveform. DC is a steady voltage that flows in one direction, while AC alternates in direction, changing polarity over time. This difference affects how each type of voltage is used in various electrical applications.
If a 120v transformer has 200 turns the secondary winding has 20 turns what is the secondary winding voltage?
The ratio of AC voltages is the same as the ratio of winding-turns in the transformer. Vp / Vs = Np / Ns (10 volts AC) / Vs = 200 / 20 = 10 Vs = (10 volts AC) / 10 = 1 volt AC.
How can you 120 volts AC to 5 volts DC?
By a DC power supply that runs at 230 volts AC. Basically, you need a full wave rectifier (4 diodes) to convert AC into all positive voltage. Then you need capacitors to smooth out the ripple and then various resistors to reduce the voltage.
Which Two electrical quantities are measured in volts?
Voltage and potential difference are measured in volts.
What is the household AC electrical power mains voltage in Europe?
in Australia most homes are single phase 240 volts but when measured with a multi meter sometimes you get readings of between 230 and 250 volts
Rms value defination?
Because alternating current (AC) voltage varies over time, to the positive and negative, an actual AC voltage measurement will not be the same as a DC voltage measurement. For example: 5 volts DC is 5 volts constantly, viewed over time. The average voltage is 5 volts. 5 volts AC (from zero to peak) is not actually 5 volts constantly, but varies between 5 volts and 0 volts over time. The average voltage will not be 5 volts. Using RMS AC values is designed to make AC and DC measurements equivalent, for example 5 volts DC and 5 volts RMS AC are almost identical.
What is use of rms value?
Because alternating current (AC) voltage varies over time, to the positive and negative, an actual AC voltage measurement will not be the same as a DC voltage measurement. For example: 5 volts DC is 5 volts constantly, viewed over time. The average voltage is 5 volts. 5 volts AC (from zero to peak) is not actually 5 volts constantly, but varies between 5 volts and 0 volts over time. The average voltage will not be 5 volts. Using RMS AC values is designed to make AC and DC measurements equivalent, for example 5 volts DC and 5 volts RMS AC are almost identical.
Whats the voltage of a mixer to be used in US?
The voltage used inside a mixer is arround 30 volts DC. But in the US there are in the housholds 117 Volts AC/60 Hz. So you will use that.
How 5 volts DC and 5 volts AC are almost identical?
Both 5 volts DC and 5 volts AC represent the same voltage level of 5 volts. However, the key difference lies in their waveform. DC is a steady voltage that flows in one direction, while AC alternates in direction, changing polarity over time. This difference affects how each type of voltage is used in various electrical applications.
Is 12 volts dc as powerful as 120 volts ac?
You get power by multiplying the amperes and the voltage. 12V, 10A dc would give the same power as 120V, 1A ac.
What are examples of voltage?
220 volts, 110 volts, 440 volts, 400 volts, AC or DC voltage. High voltage like - 220 KV, 400 KV, etc
How do you reduce 12 volts to 3.7 volts?
If the voltage is AC a transformer can be used.
What is effective voltage?
It is the 'as if' voltage in an AC circuit. Referred to as Vrms 120 volts in your house is Vrms, the effective voltage, 'as if' it were DC 120V, can do the same work. But 120VACrms is a sine wave with a peak voltage much higher than 120 volts.
Why AC is dangerous as compare to DC for same amount of voltage?
The danger is in the voltage, not if it is ac or dc. For instance, 12v dc or 12v ac makes no difference in body contact. Neither will shock you. Usually 24 volts will not shock either. When you get to 48 volts or greater, then you have a chance of shock. 100 volts Ac or Dc shocks basically the same. 120 volts AC is actually 144 volts peak to peak, so 120 volts AC is slightly worse than 120 volts DC. Amperage is actually what kills. A "Taser" voltage can be as high as 50,000 V but the amps are so slow that it doesn't do permanent damage. Commonly people are shocked accidentally by a spark plug wire on a car or a lawnmower with no lasting or ill effects. This voltage can range from 15,000 volts to more than 50,000. These systems have very low amperage.
If a 120v transformer has 200 turns the secondary winding has 20 turns what is the secondary winding voltage?
The ratio of AC voltages is the same as the ratio of winding-turns in the transformer. Vp / Vs = Np / Ns (10 volts AC) / Vs = 200 / 20 = 10 Vs = (10 volts AC) / 10 = 1 volt AC.
When an AC voltage is being measured across a 15 resistor which is carrying a current of 12 amps the selector switch should be set to the AC voltage position of 2 volts 200 volts 20 volts 1000 volts?
Two Hundred
How can you 120 volts AC to 5 volts DC?
By a DC power supply that runs at 230 volts AC. Basically, you need a full wave rectifier (4 diodes) to convert AC into all positive voltage. Then you need capacitors to smooth out the ripple and then various resistors to reduce the voltage.
