What is the expected current required to energize a Bosch SPDT relay with 12 volts and a coil resistance of 80 Ohms?

To determine the expected current required to energize a Bosch SPDT relay with a coil resistance of 80 Ohms when powered with 12 volts, Ohm's Law is utilized. Ohm’s Law states that current (I) is equal to the voltage (V) across a resistor divided by the resistance (R) of that resistor. The formula can be expressed as:

I = V/R

In this scenario:

• V = 12 volts

• R = 80 Ohms

Applying the values to the formula:

I = 12V / 80Ω = 0.15A

This calculation indicates that the current required to energize the relay is 0.15A. Therefore, option C is the correct answer as it accurately reflects the result of the calculation using Ohm’s Law. Understanding this principle is vital in electronic applications, especially when determining whether the available power supply can adequately energize a component like a relay.