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Ac voltage applied across a load resistance produce alternating current?
Wiki User
∙ 10y ago
The reason an AC voltage applied across a load resistance produces alternating current is because when you have AC voltage you have to have AC current. If DC voltage is applied, DC current is produced.
Wiki User
∙ 10y ago
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The kind of electricity from the power plant is called?
There are only two kinds of electricity, direct current and alternating current. All power plants now produce alternating current
The voltage needed to produce a current of 8 A in a resistance of 12 ohms is?
8x12=96
What piece of equipment is used to produce electricity?
Some possible answers are: a battery (which produces direct current) or a generator of electricity generator, such as a dynamo (which produces direct current) or an alternator (which produces alternating current).
How much voltage a piezoelectric crystal can produce?
The current will depend on external resistance - far better to consider total energy, conversion efficiency, or failing that, voltage. The answer will depend on device size anyway.
What is the function of a commutator in DC generator?
All types of generators induce EMF in sinusoidal wave form. (A.C.) In a D.C. generator the function of a commutator is to convert A.C. EMF into D.C. The commutator rectifies the output that is the alternating current so as to produce unidirectional alternating current (pulsating DC). This reverses the negative polarity current to a positive one so as the output is a pulsating DC.
Does copper need a voltage to produce a current?
Copper can not of itself produce a current. <><><><><> However, resistance, be it copper or some other material, will produce a current if a voltage is applied to it. The rule is Ohm's law: Current = Voltage divided by resistance.
Will 30 volts of supplied AC voltage produce the same current as 30v of DC through 2 kilo ohm resistance?
Yes. Because the 30v ac is root-mean square value which is the value of an alternating quantity that will produce the same heating effect as the DC quantity when applied to the same resistance.
Why does a ac voltage applied across a load resistance produce alternating current in the circuit?
Because V = I x R or Voltage = Current x Resistance. Since resistance is linear there is a linear relationship between Current and voltage. If you have DC voltage you have DC current and if you have AC Voltage you have AC current. Note that there is a linguistic recognition of this relationship in that the voltage is described in terms of the current.
Which sources produce alternating current?
AC generators, powerplants etc produce alternating currents.
The kind of electricity from the power plant is called?
There are only two kinds of electricity, direct current and alternating current. All power plants now produce alternating current
What resistance would produce a current of 25 ampers?
resistance does not produce currents . you need source (like voltage source , current source ,or , discharging capacitor) to generate current .
What type of electric current does a power plant generate for use in your home?
generally power plants produce ALTERNATING CURRENT,because after producing the current the are sent to substations where they are stepped up or stepped down.so a transformer is mainly used over there.for a transformer we cant supply direct current.we should supply only alternating current.so they only produce alternating current................... 4RM PRAJITH
Does a generator produce direct current or alternating current?
A generator produces an alternating current, still it gives d.c. output because we use slip-rings at the terminals of actual output of generator.
Why do electric company generators produce alternating current?
Because alternating current can be run through a transformer to step up or down the voltage. High voltage current incurs lower losses in transmission.
Why are currents changing direction?
Alternating current is generated by a rotating generator which moves in such a way as to produce that kind of current.
How are voltage resistance and current related?
Current, voltage and resistance are related by the Ohm's law formula which states that current is directly proportional to the applied voltage and inversely proportional to the resistance at a constant temperature. Stated mathematically: I = E/R where I = current in amperes, abbreviated to A E = voltage in volts, abbreviated to V R = resistance in ohms, usually signified by the Greek omega Ω
Does a dry cell battery produce alternating current or direct current?
directA dry cell battery produces DC.
