🔍 Key Concepts

• Difference between electrostatic energy storage and electromagnetic energy storage • How a capacitor works compared to a battery • Which devices store energy versus mainly transform or control it

💭 Think About

• Which of these devices is specifically associated with electric fields between two plates? • Which option is best known for short-term energy storage and rapid charge/discharge, not long-term chemical storage? • Which devices on the list mainly rely on magnetic fields instead of electric fields to operate?

✅ Before You Answer

• Identify which choice is defined by storing energy in an electric (electrostatic) field, not a magnetic field • Eliminate any devices whose primary function is voltage conversion or current induction, not direct energy storage • Distinguish between chemical energy storage and field energy storage before choosing