An LDR is a Light dependent resistor.
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The above is the symbol of flow meter.
The circle and line symbol that appears on most computer power buttons is simply the symbol for Power. This is a universal symbol and it used on computers in many countries. It is considered the universal symbol for Power On/Off.
THE SYMBOL FOR Flow Meter is : FI as Flow Indicator
The symbol for a buzzer is a semi-circle with the straight line facing upwards and two prong type things sticking out the bottom of it.
this is the symbol for ldr
The symbol for LDR Holding Corporation in NASDAQ is: LDRH.
LDR refers to Light Dependent Resistor.
Light Dependent Resistor LDR also means long distance relationship.
LDR Holding Corporation (LDRH) had its IPO in 2013.
When LDR is exposed to light energy . Due to light energy incident on LDR surface, free electron movement of an atom is increased in LDR. This causes high conduction of curent flowing through LDR. beause of free electron movement in LDR, resitance get decreased.
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As of July 2014, the market cap for LDR Holding Corporation (LDRH) is $534,318,199.51.
An LDR is a light dependent resistor, which is usually used to detect light levels, either ambient or reflected. The LDR works because incoming light carries energy, which can elevate the energy levels of electrons in a suitable medium to join the 'conduction band' which means that there are more charge carriers in the LDR, and hence the cell has lower resistance.
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The LDR dependent AC dimmer is a Light Dependent Resistor which works by chopping off the parts of the AC voltage.