Simplify the following text for a Grade 8 native English-speaking person.
Original: An LC circuit , also called a resonant circuit or tuned circuit , consists of an inductor , represented by the letter L , and a capacitor , represented by the letter C. When connected together , they can act as an electrical resonator , an electrical analog of a tuning fork , storing electrical energy oscillating at the circuit 's resonant frequency .
Simplified: LC circuit is an electronic circuit made up of an inductor and a capacitor .