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What effect does pencil lead have on the flow of electricity and on a motor and speed of the motor?
Wiki User
∙ 6y ago
If the question is asked correctly and if graphite conducts electricity (I don't know if it does) then any pencil lead on a conductor would infinitesimally decrease the resistance of the circuit, too small to matter. Metal shavings and other debris that conduct electricity are very dangerous because very often it falls into places where you do not want current to flow.
If you are referring to "penciling" the insulation on a conductor then please restate the question and I will be happy to answer it for you.
Wiki User
∙ 6y ago
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What is the effect of increasing number of poles on the speed of an induction motor?
As the number of poles (P) increases, the speed of an induction motor (N) decreases. As seen by the formula: N=(120*f)/P
What is effect of frequency on induction motor speed?
secret......... They are proportional..
Which motor is used in low speed applications?
Some motors are specially designed for low speed. Some are "invertor Duty" classified so that they can be run on invertor (VFD) normally with a high heat dissipating design. On low speed the cooling effect reduces drastically since the cooling fan is mounted on the same motor shaft. Hence a separate small cooling fan is mounted on the motor, driven by separate power such that it keeps running at normal speed irrespective of main motor speed, thus providing the required cooling effect.
If the speed of the dc shunt motor falls due to loading what will be the effect?
on adding load on a dc shunt motor, the amount of current and torque will increase. but terminal voltage will decrease
What happens if load is greater than output power?
For AC system speed of generator will be decreased and then frequency decrease, if there is no trip the motor load will be automaticaly reduced as Load Power = torque x speed and speed of motor vary acc to frequency. Finally the motor will be run at new lower speed that load = power generation. The other effect is voltage in the system will be decreased and result of lower load consumption
What effect does the pencil lead have on the speed of a motor?
Pencil lead applied to the moving parts will improve performance by reducing friction. This may or may not increase the speed of the motor for a given power supply.
What is the minimum speed of the 6v motor to produce electricity?
The minimum speed of 6v motor to produce electricity is 15 Mph.
What is a slip in electricity?
it is the difference between the synchronous and asynchronous speed of a induction motor
What happens to the speed of a motor car when breaks are gently applied?
effect of force
What factors determine the synchronous speed of an AC motor?
Number of poles and supply freqency determines speed of synchronous motor. For speed control of such motors Variable Freqency Drives(VFD) are used.
If you increase or decrease the frequency what effect on electrical machin?
If you're talking about an electric motor, increasing the frequency will increase the speed of rotation of the motor, and decreasing the frequency will decrease the speed of rotation of the motor. The other way of controlling a motor is to control the current; increasing the current increases speed, decreasing current decreases speed.
How the fan regulator conrolled the speed of fan?
Through a restrictive process of limiting the amount of electricity to the fan motor.
Does ceiling fan consume less electricity on high speed?
Ceiling fans use less electricity on low speed than they do on medium and high speed. Capacitors are used to control the various fan speeds. The capacitor limits the amount of electricity supplied to the fan motor. When less electricity is sent to the windings in the motor, the fan spins at a lower RPM. The result is a slower speed and less airflow. However, some fans move almost no air at low speeds, so it is important to know what the CFM/watts is for the ceiling fan in question so you can compare the performance at any given speed relative to the amount of electricity used
What is the effect of increasing number of poles on the speed of an induction motor?
As the number of poles (P) increases, the speed of an induction motor (N) decreases. As seen by the formula: N=(120*f)/P
What is effect of frequency on induction motor speed?
secret......... They are proportional..
Where do the light waves change speed from a pencil?
ACTUALLY ! Its when the pencil enters the water .
How do you calculate how much electricity a DC motor will generate?
A DC motor will generate electricity, if used in reverse. IE, rotate it and electricity will be generated. The voltage will be dependant on the speed of rotation. The capacity (Amperage) will depend on the size of the windings and diameter of copper wire involved. Limitation to power and speed will also be limited by the construction of the commutator. All these variables are difficult to predict and unlikely a formula is available. You will need empirical means and careful testing, especially as the motor was not intended to be used in this way.
