What would be the result if a 24 volt, 20 ohm contactor coil was wired in series with a 24 volt, 200 ohm control relay?

To understand the scenario in which a 24 volt, 20 ohm contactor coil is wired in series with a 24 volt, 200 ohm control relay, it's important to consider the principles of Ohm's Law and how voltage, current, and resistance interact in a series circuit.

In a series circuit, the same current flows through all components. The total resistance of the circuit is the sum of the individual resistances, which in this case would be 20 ohms (contactor) + 200 ohms (control relay) = 220 ohms.

According to Ohm's Law (V = I * R), the total current (I) flowing through the circuit can be determined by the total voltage (V) supplied to the series circuit divided by the total resistance (R). Here, if we apply 24 volts to a total resistance of 220 ohms, the current in the circuit would be:

I = V / R = 24 volts / 220 ohms ≈ 0.109 A (approximately).

Now, we need to check if this current is sufficient to energize the coils:

1. For the contactor coil: The voltage across it at the calculated current would be V