Do you mean "What is a sensor in a circuit?" have a look at the link to the Wikipedia entry,
I guess Electric Circuit....
an open circuit is a circuit that does not complete the circle. an open circuit does not do the job as the electricity stands still a short circuit is a circuit that wires have crossed and the electricity takes the shortest path. and does not complete all of the points on the circuit
In a series circuit, the potential voltage across the circuit components adds up to the total voltage of the circuit.
Mercury conducts electricity. These switches are usually used in thermometers in air conditioners, etc. There is a coil that is temperature sensitive that causes the mercury to tilt. There are also two electric poles inside of the glass the mercury is contained in. If the glass it tilted in one direction, the liquid mercury encompasses both poles and completes the circuit. If the glass is tilted in the OTHER direction, the mercury moves away from the poles and opens the circuit.
If one bulb in a series circuit goes out, then current can't flow anywherein the circuit. A circuit in which current can't flow is an open circuit.
MAP sensor circuit low.MAP sensor circuit low.
Map sensor circuit voltage highMap sensor circuit voltage high
Camshaft position sensor circuit malfunction.Camshaft position sensor circuit malfunction.
heater sensor circuit Chevy astro 2000
P0139 02 Sensor Circuit Slow Response (Bank 1 Sensor 2)P0139 02 Sensor Circuit Slow Response (Bank 1 Sensor 2)
Power steering pressure sensor circuit performancePower steering pressure sensor circuit performance
31manifold and/or airflow meter sensor signal circuit--airflow meter/circuit--manifold pressure sensor/circuit--ecu
P0344 Camshaft Position Sensor Circuit IntermittentP0344 Camshaft Position Sensor Circuit Intermittent
Downstream O2 sensor circuit volts high.Downstream O2 sensor circuit volts high.
P0344 = Camshaft position sensor 'A' circuit intermittant (Bank 1 or single sensor)'A' circuit is intake side. 'B' circuit is exhaust side.
9 time out of 10, the heater circuit internal to the sensor has failed. Replace the sensor.
It is O2 Sensor Circuit Malfunction possibly (bank 2 Sensor 2) Yogi karki It is O2 Sensor Circuit Malfunction possibly (bank 2 Sensor 2) Yogi karki