Electromagnetic Induction And Inductance

Solution: To determine the potential difference , we should use the concept of inductance in conjunction with Ohm's law and Faraday's law of electromagnetic induction. In an electrical circuit consisting of resistance and inductance , the total potential difference across these elements when the current changes is given by:

where

• is the current through the resistor,
• is the rate of change of current,
• is the resistance, and
• is the inductance.

Assume that the resistance and inductance are such that:

Given:

• Immediate current
• Rate of change of current

Substitute these values into the formula:

Therefore, the correct calculation gives:

The potential difference