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Does a ceramic capacitor change its polarity while discharging?

2019-01-29

Not really. Discharging won’t change the ceramic capacitor’s polarity because it is a kind of non-polar capacitors;

Why are LED lights sought after for various applications?

2019-01-29

As for the reason why real LED lights sought after for variuos applications, here are four possible reasons for your reference:

What is the relationship between resistance and diameter?

2019-01-29

Exactly speaking, the power of the resistance is related to the value of the resistance, which is on the basis of the same material and length. In other words, the resistance and diameter have such a close relationship, such as :

Why do some electronic devices work better with single-use alkaline batteries?

2019-01-28

Considering the internal resistance of the rechargeable battery is smaller but the output current is larger, for those small electrical appliances which are not suitable for large current, apparently, single-use alkaline battery is a better choice.

How do I connect LED and resistor to a speaker?

2019-01-28

In fact, the LED can be connected directly with the speaker. In other words, in order to protect the LED from being burned out, which need to be connected with the current limiting resistor in series.

How can I dry out an electrical plug that fell into water?

2019-01-28

As for this question, an eletrical plug fell into water, the way we see, which actually depends on the following two different situations.

What is the biggest hurdle facing super capacitors technology?

2019-01-25

The biggest hurdle of super capacitors technology : New material.

How do you know if a phone has a temperature sensor?

2019-01-25

Actually, nowadays, temperature sensor is changed into CPU built-in sensor or thermal resistor. In addition, such a sensor is fitted inside the chip. That’s to say, the programmer can check it.

Why does the electric car company Tesla Motors use AC motors in their cars?

2019-01-25

You know, comparing with DC motor, AC motor at least has the following three merits: 1) Without comutator, AC motor is simple in structure and convenient in fabrication; 2)AC motor is relative firmly, which is easy to be made a high speed, high volt

What is difference between IR sensor and ultrasonic sensor?

2019-01-24

The difference between IR sensor and ultrasonic sensor: IR sensor, Infra-Red sensor, whose circuit is simple; However, it is heavily influenced by light and ranging unavailable; Ultrasonic sensor: Stable, ranging available and little influenced by l

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