Explain with neat labeled circuit diagram the staircase wiring in which a lamp is controlled from two different locations.

Explain with neat labeled circuit diagram the staircase wiring in which a lamp is controlled from two different locations. 
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1 Answer

Answer :

one lamp controlled from two places:

image

Explanation:

1. The switch S1 (two way switch is located at bottom position of the staircase.

2. The switch S2 is located at top position of the staircase.

3. Initially the lamp is ‘OFF’ by changing the position of S1 or S2 the lamp will become ‘ON’ or ‘OFF’ as per our requirement.

4. The staircase wiring is also used in hospitals.

5. The operation steps for the staircase wiring are as below:

* Initially lamp is OFF

* Change the position of S1 lamp will become ON due to current flow

* Change the position of S2 lamp will become OFF due to current discontinuity

* This process remains continuously 


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