difference between ac and dc motor class 10

In AC motors, the armature is stationary while the magnetic field rotates. In DC motors, the armature rotates while the magnetic field remains stationary. ... The brushes and commutators in DC motors limit the speed and reduce the life expectancy of the motor.

What is difference between AC & DC motor?

The most obvious difference is the type of current each motor turns into energy, alternating current in the case of AC motors, and direct current in the case of DC motors. AC motors are known for their increased power output and efficiency, while DC motors are prized for their speed control and output range.

What is the difference between AC and DC Class 10?

The main difference between AC and DC lies in the direction in which the electrons flow.
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A video comparing Alternating Current and Direct Current.

What is the difference between AC and DC motor PDF?

A C Motor works on the concept of alternating current, whereas DC Motor works of the Direct Current. ... DC Motor are self-starting motors. The Armature is stationary, and the magnetic field rotates in the AC Motor but in DC Motor the armature rotates, and the magnetic field is stationary.

What is the basic difference between AC and DC generator?

In an AC generator, the electrical current reverses direction periodically. In a DC generator, the electrical current flows only in one direction. In an AC generator, the coil through which the current flows is fixed while the magnet moves. The construction is simple and costs are less.

Which is powerful AC or DC?

Alternating current (A.C) is five times more dangerous than Direct current (D.C). The frequency of the alternating current is the main reason for this severe effect on the human body. The frequency of 60 cycles is in an extremely harmful range. At this frequency, even a small voltage of 25 volts can kill a person.

Which is best AC or DC?

DC power is significantly more energy efficient than AC power. DC motors and appliances have higher efficiency and power to size characteristics. DC-based lighting (LED) is as much as 75% more efficient than incandescent lighting.

Why DC current is not used in homes?

DC is mainly not applied for these purposes due to some reasons. For example, heat production due to more power loss compared to AC, more significant dangers of causing a fire, more costs, and problems from converting high voltage and low current to low voltage and high current with the help of transformers.

Which current is used in home?

Many devices in your house need DC. When you plug things into the outlet in your house, you don't get DC. Household outlets are AC - Alternating Current. This current has a frequency of 60 Hz and would look something like this (if you plotted current as a function of time).

Why is AC preferred over DC?

Answer: Ac is more preferred than dc because it is easy to maintain and change the voltage of ac for transmission and distribution purpose. Plant cost of ac transmission is much lower compared to dc transimission. When fault occurs it is easy to interrupt ac supply.

Which treadmill is better AC or DC?

AC motors are often more powerful than DC ones, but are usually noisier and may require a dedicated power line. The larger, commercial treadmills are usually designed with AC motors, while home-use machines have DC motors.

How do you convert AC to DC?

The most common way to convert alternating current into direct current is to use one or more diodes, those handy electronic components that allow current to pass in one direction but not the other. Although a rectifier converts alternating current to direct current, the resulting direct current isn't a steady voltage.

What is DC motor working principle?

A DC motor is an electrical machine which converts electrical energy into mechanical energy. The basic working principle of the DC motor is that whenever a current carrying conductor places in the magnetic field, it experiences a mechanical force.

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