Question

Many traffic lights charge when a car roll up intersection. How does the light sense the presence of car? Describe briefly.

Answer 1

There are a few ways that traffic lights can sense the presence of a car. One way is by using inductive loops that are installed on the road. These loops detect changes in the magnetic field caused by a car passing over them. Another way is by using infrared sensors that detect the heat signature of a car.

Step-by-step explanation:

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