18th September 2018

quora

13

What is OTG reverse charging support?

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Reverse charging feature which lets you charge other phones through the bundled USB OTG cable .It means that you can charge other phone using phone's reverse charging feature. USB reverse charging simply means that your device can act as power bank and can be used to charge other devices.

Keeping this in view, do all phones support OTG?

The bad news is that not all devices come with the necessary hardware and drivers for this USB On-The-Go (OTG) capability. The fastest and most effective solution by far is to install USB OTG Checker, a free app that quickly and effectively determines whether your Android phone or tablet supports USB OTG.

What is OTG connection in mobile?

OTG(On The Go) is a standard that enables mobile devices to talk to one another. Traditionally mobile devices could only connect to a Mac/PC by USB, but USB OTG makes it possible for devices to connect directly to each other.

1

What is the reverse charge?

The reverse charge is the amount of VAT you would have paid on that service if you had bought it in the UK. You have to add that amount to the total of VAT you are going to pay to HMRC that quarter, but also to the amount of VAT you are going to reclaim in that quarter.

2

What happens when you reverse the polarity of a battery?

Remember, a completely discharged battery is nothing more than an empty vessel. That same previously discharged battery would then be vulnerable to reverse charging, either by connecting the battery charger backwards, or by a charging system that reversed polarity (very rare, but still possible).

3

What does it mean to reverse the polarity?

Reversed Polarity Outlets. Reversed polarity creates a potential shock hazard, but it's usually an easy repair. A brief definition of Hot and Neutral wires: On a standard outlet, which is technically called a 'duplex receptacle', there are two wires that carry electricity.

4

What happens when you reverse polarity in a motor?

If you reverse the wire polarities so that each wire is connected to the opposing power supply terminal, then the motor rotates counter clockwise. DC Motor rotation does have to do with the voltage polarity and the direction of the current flow.

5

Can reverse polarity damage electronics?

Reverse polarity damage to 12/24 Volt electronics. Reverse Polarity faults typically occur while jump starting vehicles or installing new batteries. Because of poor design techniques, much of the electronic gear brought into the marketplace over the past several years can be severely damaged by reverse polarity.

6

Can you generate electricity with a DC motor?

Introduction: DC Motor As a Generator. The DC motor is a ready made generator that will generate electricity. All that you have to do is turn the Axle of the generator using a mechanical outside source of energy .

7

Can a DC motor be turned into a DC generator?

Yes, absolutely. In fact, in a brushed permanent magnet motor, no conversion needs to be done. Just spin the shaft and it generates DC voltage/current. They use an IC and several transistors to convert DC into 3 phase AC (switched DC), you'll need to remove that and insert diodes to convert the AC coming out into DC.

8

How does a DC generator work?

A dc generator is an electrical machine which converts mechanical energy into direct current electricity. This energy conversion is based on the principle of production of dynamically induced emf. This article outlines basic construction and working of a DC generator.

9

What is the difference between an AC and DC generator?

The major difference between an AC generator and a DC generator is that the DC generator requires a mechanism to provide a DC output. This can be done mechanically with a commutator or electronically with a rectifier. Internally, all generators produce an alternating voltage. All generators require a magnetic field.

10

How does the commutator converts AC to DC?

The commutation in DC machine or more specifically commutation in DC generator is the process in which generated alternating current in the armature winding of a dc machine is converted into direct current after going through the commutator and the stationary brushes.

11

Why commutator is used in DC motor?

Commutator and Brushes on DC Motor. To keep the torque on a DC motor from reversing every time the coil moves through the plane perpendicular to the magnetic field, a split-ring device called a commutator is used to reverse the current at that point.

12

What is the difference between a slip ring and a commutator?

A commutator is a specialized slip ring typically used on Direct Current motors and electrical generators to transfer electrical power between the stationary housing and the rotating armature with the added purpose of reversing the electrical current direction.

13

Why slip rings are used?

A slip ring is an electromechanical device that allows the transmission of power and electrical signals from a stationary to a rotating structure. A slip ring can be used in any electromechanical system that requires rotation while transmitting power or signals.

14

What is the purpose of the split ring?

Question: The purpose of the split ring commutator in a DC motor is A)to prevent the battery or power sup A)to prevent the battery or power supply fromshorting out. B)to reverse the current in the rotor coil whenits magnetic moment is parallel to the magnetic field.

15

What is the difference between slip rings and a commutator?

"A split-ring commutator makes the current change direction every half-rotation, whereas a slip-ring commutator merely maintains a connection between the moving rotor and the stationary stator."

16

What is the role of the split ring in an electric motor?

The half-ring D comes in contact with brush A and half-ring C comes in contact with brush B. Hence, the direction of current in the coil MNST gets reversed. The current flows through the coil in the direction TSNM. The split rings help to reverse the direction of current in the circuit. These are called the commutator.

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