Answered: C Volt- meter R≤R V L This detects cars… | bartleby

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C
Volt-
meter
R≤R
V
L
This detects cars at a traffic light. Here C = 0.1 μF. R = 20 2. With no car, L = 5 mH, the
frequency w is at resonance and total impedance Z = 20 2. With a car, w never changes, but
L changes to 4.5 mH. Then the new Z is

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