How many types of coil are there - There are four types of coil
1. Normal color
2. Two Color coil
3. Dotted coil
4. Round and Boost coil
coil's work-
When current passes through a coil, a magnetic field is generated around it.
1.It filters the signal
2.Passes low frequency
3.Prevents high frequency
4. Resists the change in current
coil's OK condition-
Check the cable by setting the multimeter on the beep (continuity) mode. If the cable gives beep sound from both the sides then it is ok.
Faulty condition of coil-
If the coil doesn't sleep anything on either side then it is open.
Note: If after checking by setting the multimeter to 200 Ohms, if KL sleeps between 0.5 to 200 Ohms then KL is OK.
Denoting letter- L Unit- Henry
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