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Answered 2008-11-17 02:18:22
motor magnetizing current will increase with increase in voltage, therefore power factor of motor will decrease and motor will draw more current than rated.
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What will be effect on motor current when an induction motor is supplied with lower voltage than rated voltage?
The current will be higher than the rated full load amps that is stamped on the name plate.
What is the effect of low voltage on induction motors?
The effect of low voltage on induction motors raises the current that the motor will draw.
What is voltage controlled device?
RPS is only the voltage& power controlled device. it can only used for set the input for our wish A device which can change its output according to the voltage supplied to it is called a voltage controlled device.ex. a voltage controlled current source,or a field effect transistor. In a voltage controlled current source the output current changes as the voltage supplied to it changes.
Why current leads in capaciter?
Capacitors resist a change in voltage. It takes current to effect a voltage change, resulting in the current "leading" the voltage. Similarly, inductors resist a change in current. It takes voltage to effect a current change, resulting in the current "lagging" the voltage.
Why do you usually consider voltage as cause and current as effect?
You apply a voltage across a load and the result is that a current flows through the load. So you must have the voltage present, the cause, before current flow, the effect. Think of voltage as pressure and current as flow.
What is the current effect on the wire if both the voltage across it and its resistance are halved?
Resistance = Voltage ----------- Current So if both the resistance and voltage have halved, the current has doubled
What is the effect of changing the voltage?
Less current.
What is the effect on voltage with the increase in resistance?
If the current is held constant, the voltage will decrease.
If you double both the voltage and the resistance in a circuit what would be the effect on the current?
Ohm's Law: Current is voltage divided by resistance. Doubling both the voltage and the resistance will not change the current.
What is RMS value of an alternating current?
The r.m.s. value of an alternating current or voltage is the value of direct current or voltage which produces the same heating effect.
What would be the effect of increasing the voltage of the battery?
Ohm's Law states that Voltage = Resistance (Ohms) * Current (Ampere). So when you increase voltage, you increase current.
What is the effect of internal resistance of the source to its output voltage?
When a load current flows, as well as flowing through the load, it also flows, internally, through the voltage source. A load current, therefore, causes an internal voltage drop which, by Kirchhoff's Voltage Law, opposes, the electromotive force of the source. The larger the load current, the greater the internal voltage drop. So, the terminal voltage of a voltage source will decrease as the load current increases. By definition, the e.m.f. of the source is equal to the sum of all the voltage drops (including the internal voltage drop) around any closed loop supplied by that source.
For a constant value of voltage what is the effect on current if resistance is halved?
If resistance is halved while voltage remains constant, the current will double.
What is the effect on current if both the voltage and the resistance are halved?
current is unchanged or remains the same
What is hall effect hall voltage?
The Hall effect is the production of a voltage difference (the Hall voltage) across an electrical conductor, transverse to an electric current in the conductor and a magnetic field perpendicular to the current. It was discovered by Edwin Hall in 1879
What effect does an increase in current have on voltage?
That depends on the circuit - but note that in almost all real circuits the current is the dependent variable - you control the voltage and the current sets itself.
What is the effect on the supply current if the capacitor is removed?
It depends on how the capacitor is connected and whether the supply voltage is a.c. or d.c. Assuming you are talking about a power-factor improvement capacitor (connected in parallel with an inductive load, supplied with a.c.), then the supply current will reduce.
What is the effect on the current in a wire if both the voltage across it and it's resistance are doubled?
By Ohm's Law, current is voltage divided by resistance, so if you double both the voltage and the resistance, the current would remain the same.
When both voltage and resistance are doubled what happens to the current?
Since current is, by Ohm's Law, equal to voltage divided by resistance, then doubling both will result in no net effect to the current.
If Three 12 volt batteries are connected in parallel what is the effect on the circuit?
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What is the effect when current flows through resistance?
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When a current carrying conductor is placed into a magnetic field a voltage will be generated perpendicular to both the current and the field This effect is called?
Hall Effect
How does loading effect affect flow of current?
Ohm's Law says that Voltage = Current x Resistance (Load). Therefore Current = Voltage / Resistance and as resistance decreases current increases and as resistance increases current decreases.
If you doubled both the voltage and the resistance in a circuit what would be the effect on the current?
Using Ohms Law: V = I x R, where V (Voltage), I (Current), and R (Resistance). re-arranging: V/R = I Therefore if you double both the Voltage and the Resistance, the current remains unchanged.Current = Voltage / Resistance. If both resistance and voltage double the current remains the same.
What is the effect on current through a circuit of steady resistance when the voltage is doubled?
Ohm's law: current is voltage divided by resistance, so doubling the voltage while holding the resistance constant will double the current.Not asked, but answered for completeness sake; since power is voltage times current, doubling the voltage into a constant resistance will quadruple the power.
