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What causes that oily film between the keypad membrane and the circuit board on cordless phones?
Not being a chemist, or in the electronics manufacturing industry, I can only guess, so this is just a temporary answer UNTIL an expert joins in with a better answer. I SUSPECT that the oily film which develops on and between the kepad membrane and the circuit board in cordless phones, and basically any such keypad, is the result of "bleed out" [seepage] of "PLASTICISORS" [spelling?]in the membrane. Plasticisors are compounds added to plastics to preserve flexibility and inhibit or prevent the "drying out" and cracking of most plastics over time. I think I have been told, or read, that Silicone is one of these compounds. In some cases, like the keypad membrane, the compound can bleed out as a liquid, while in some cases, it "outgasses" in the form of a vapor without leaving an oily residue. This also happens with automobile tires, dash board covers, vinyl upholstery, etc. We often correct this problem by using one or more spray or wipe-on "rejuvinator" products to replace the "lost" compounds.
What else can I help you with?
What causes a current in an electric circuit?
Voltage causes current to flow in an electric circuit.
What is The pushing force that moves through a circuit is called?
The pushing force that moves through a circuit is called voltage. It is the potential difference between two points in the circuit that causes the charge to flow.
What causes a electric current in a electric circuit?
Voltage causes current to flow in an electric circuit.
What is the force that causes electrons to move in an electrical circuit?
The force that causes electrons to move in an electrical circuit is called voltage. Voltage is the difference in electric potential between two points in a circuit, which creates an electric field that pushes the electrons to flow from the higher potential to the lower potential.
What causes P0533 and P0532?
P0532 A/C Refrigerant Pressure Sensor Circuit LowInputP0533 A/C Refrigerant Pressure Sensor Circuit HighInputP0533 -A/C Refrigerant Pressure Sensor Circuit High Input.possible causes, ACP circuit short to GND or SIGRTN.VREF circuit open.Damaged PCM.Open ACP circuit.Damaged ACP sensor.Possible Solution verify vref between 4 and 6 volts.
What is the relationship between wire inductance and the efficiency of an electrical circuit?
The relationship between wire inductance and the efficiency of an electrical circuit is that higher wire inductance can lead to lower efficiency in the circuit. Inductance causes energy losses in the form of heat, which can reduce the overall efficiency of the circuit by wasting energy. Minimizing wire inductance can help improve the efficiency of the electrical circuit.
What a short circuit?
A circuit with very little (or no) resistance, that causes and unintended crossing of the circuit pathways.
What causes a short circuits?
-circuit damage -overheating -fire or explosion causes a short circuit.
The combining of the neurotransmitter with the muscle membrane receptors causes the membrane to become permeable to sodium ions and blank of the membrane?
The combining of the neurotransmitter with the muscle membrane receptors causes the membrane to become permeable to sodium ions and depolarization of the membrane. This depolarization triggers an action potential that leads to muscle contraction.
When the wires are connected to the terminals of the battery what causes electric current in a circuit?
The resistance of the load is what causes an electric current to flow in a circuit.
What causes an elecrtic current to flow in a circuit?
The movement of electron towards the high potential causes electric current to flow in a circuit.
What is the relationship between the electric field formula and voltage in an electric circuit?
The electric field formula and voltage in an electric circuit are related because voltage is a measure of the electric potential difference between two points in a circuit, and the electric field is the force that causes charges to move between those points. In simple terms, the electric field creates the voltage that drives the flow of electric current in a circuit.
