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What is the power of a motor that draws 500 milliamps using 4 volts?
Wiki User
∙ 12y ago
When 500 mA of current is flowing from a 4-volt supply, the supply is delivering
2 watts of electrical power. We can't tell how much of that power is actually
available from the motor in the form of mechanical power, and how much of it
is only heating up the parts of the motor.
Wiki User
∙ 12y ago
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How many milliamps does a 100 watt bulb use?
A 100 watt bulb typically draws around 833 milliamps (mA) of current. This calculation is done using Ohm's Law formula: Current (I) = Power (P) / Voltage (V). With a standard 120V power source, a 100W bulb would draw approximately 833mA.
How many amps will a 3 hp motor pull on 230 volts?
It depends on the voltage of the motor, and whether it is single-phase or 3-phase. A 120 VAC 2HP single phase motor draws almost 20 amps, a 240 VAC single-phase 2HP motor draws about 10 amps. A 480 VAC 2HP three-phase motor only draws about 6 amps.
Is 575 volt more deadly than 220 volt as it draws less amps than the 220 and I thought it was the amps that were dangerous?
Yes 575 volts is more deadly than 220 volts. The higher the voltage becomes the higher the current becomes through a set resistance. A normal dry body's resistance from thumb to thumb is about 2.6 meg ohms. This is the body's outside resistance from point to point and not the body's internal resistance. The body's internal resistance is in the neighbourhood of 1000 ohms. Using a voltage of 220, the formula is , Amps = 220/1000 = .22 amps or 220 milliamps Using a voltage of 575, the formula is , Amps = 575/1000 = .575 amps or 575 milliamps. As you can see as the voltage goes up so does the amperage. The following list is the tolerances that the body can stand. Remember 1 amp is equal to 1000 milliamps. Less than 1/2 milliamp no sensation 1/2 to 2 milliamps Threshold of perception 2 to 10 milliamps muscular contraction 5 to 25 milliamps painful shock (may not be able to let go) Over 25 milliamps Could be violent muscular contraction 50 to 100 milliamps Ventricular fibrillation over 100 paralysis of breathing.
Can you run a 220 volt 1 horse motor with batteries?
Yes, you can run a 220 volt 1 horsepower motor with batteries by using an inverter to convert the DC power from the batteries into AC power that the motor can use. However, the size and number of batteries needed will depend on the motor's power requirements and the duration for which you want to run it.
How Can you Make Something Spin In A Circuit?
To make something spin in a circuit, you can use a motor. Connect the motor to a power source such as a battery and control the motor's speed and direction using a switch or a motor driver. When power is applied to the motor, it will spin and create motion.
How many milliamps does a 100 watt bulb use?
A 100 watt bulb typically draws around 833 milliamps (mA) of current. This calculation is done using Ohm's Law formula: Current (I) = Power (P) / Voltage (V). With a standard 120V power source, a 100W bulb would draw approximately 833mA.
How many amps will a 3 hp motor pull on 230 volts?
It depends on the voltage of the motor, and whether it is single-phase or 3-phase. A 120 VAC 2HP single phase motor draws almost 20 amps, a 240 VAC single-phase 2HP motor draws about 10 amps. A 480 VAC 2HP three-phase motor only draws about 6 amps.
What is a hydrostatic system?
Hydrostatic systems take the mechanical rotary output of an engine or electric motor and convert it to a hydraulic source of power using a hydraulic pump. The hydraulic power is converted back to mechanical power using a hydraulic motor
What methods can you use to power and control a small electric motor using an Arduino without directly drawing power from the Arduino?
Have the Arduino control a relay that connects an external power source to the motor.
Why the armature of a dc motor draws more current at the time of starting?
With increasing torque load the armature tends to slow down; the motor draws more current to compensate, and if there is armature resistance the back emf generated by the armature falls to allow the increased current to flow, which causes the motor to settle at a lower speed. The mechanical output power is the speed times the torque, and increasing the torque increases the power output provided the speed does not drop much.
Does using a 40 watt light bulb in a 60 watt rated socket cause harm to the socket?
No. It just draws less power.
What type of energy is a running refrigerator motor?
The running refrigerator motor is using electrical energy to power the motor, which in turn drives the compressor to cool the refrigerator.
Is 575 volt more deadly than 220 volt as it draws less amps than the 220 and I thought it was the amps that were dangerous?
Yes 575 volts is more deadly than 220 volts. The higher the voltage becomes the higher the current becomes through a set resistance. A normal dry body's resistance from thumb to thumb is about 2.6 meg ohms. This is the body's outside resistance from point to point and not the body's internal resistance. The body's internal resistance is in the neighbourhood of 1000 ohms. Using a voltage of 220, the formula is , Amps = 220/1000 = .22 amps or 220 milliamps Using a voltage of 575, the formula is , Amps = 575/1000 = .575 amps or 575 milliamps. As you can see as the voltage goes up so does the amperage. The following list is the tolerances that the body can stand. Remember 1 amp is equal to 1000 milliamps. Less than 1/2 milliamp no sensation 1/2 to 2 milliamps Threshold of perception 2 to 10 milliamps muscular contraction 5 to 25 milliamps painful shock (may not be able to let go) Over 25 milliamps Could be violent muscular contraction 50 to 100 milliamps Ventricular fibrillation over 100 paralysis of breathing.
Is the current produced by a dc motor the same as the current given to it?
A motor uses electricity; it does not produce it. If you are somehow using a DC motor as a generator, then it will produce power equal to the input power minus the motor losses. If the input power is you spinning the rotor, the output power will be directly proportional to how much work you put into spinning the rotor.
What are the advantages of using electromagnetic force to power a motor?
Electromagnetism is an efficient way in which to turn a motor. It does not produce pollution and it is otherwise environmentally safe.
Does the air conditioner really waste gasoline?
Yes, it uses power and this power must be generated by the motor using more petrol.
Can you run a 220 volt 1 horse motor with batteries?
Yes, you can run a 220 volt 1 horsepower motor with batteries by using an inverter to convert the DC power from the batteries into AC power that the motor can use. However, the size and number of batteries needed will depend on the motor's power requirements and the duration for which you want to run it.
