memyselfandI
Senior Member
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- Hampton Roads, Virginia
Can you increase voltage and current simultaneously?
barbeer said:Not that I know of......I was always taught that voltage goes up, current down.
Thats exactly what happens in a DC circuit or an AC circuit with a resistive load. As stated ohms law rules Amps = Voltage/resistance. If the resistance is constant, the amps will increase with the voltagememyselfandI said:Can you increase voltage and current simultaneously?
I believe that idea comes from the electrical motor characteristics. The motor current tends to go up if the voltage decreases assuming the torque is constant.barbeer said:Not that I know of......I was always taught that voltage goes up, current down.
Now I would believe that some freaky engineer type from MIT could do it!:grin:
Originally Posted by barbeer
Not that I know of......I was always taught that voltage goes up, current down.
jim dungar said:Only if the impedance stays constant.
Jraef said:Actually from a basic level, you can't "increase" current. By that I mean that current is a function of the load. A load PULLS current, you don't PUSH current into something.
Howze bout a dead short across circuit?memyselfandI said:Can you increase voltage and current simultaneously?
They taught you very wrong. Mr. Ohm said that the current in a circuit depends upon how much pressure is pushing against how much resistence.barbeer said:Not that I know of......I was always taught that voltage goes up, current down.
Now I would believe that some freaky engineer type from MIT could do it!:grin:
bob said:I'm not following you Jim.
memyselfandI said:It's good to think about things like this...it keeps us sharp.
Is P=IE part of Ohm's law or a modification for use on AC circuits?jim dungar said:OOPS - you can't go back and edit out a mistake.
Ohms law says that voltage and current are directly proportional E=IR if the resistance is constant. However if the load is a constant power device P=IE, thus voltage and current are inversely related and R is not a constant.
P= IE applys to AC and DC circuits. However in AC circuits you must take into account the power factor.memyselfandI said:Is P=IE part of Ohm's law or a modification for use on AC circuits?
jim dungar said:Ohms law says that voltage and current are directly proportional E=IR if the resistance is constant. However if the load is a constant power device P=IE, thus voltage and current are inversely related and R is not a constant.