Transfer of electric energy from one circuit to another without the aid of electrical connections is called ______.

Transfer of electric energy from one circuit to another without the aid of electrical connections is called ______.

• A. Is called induction
• B. Is called conduction
• C. Is called insulation
• D. Is called coupling

Answer: (A)

Transferring energy without a direct electrical path relies on induction, where a changing magnetic field from one circuit induces a voltage in a nearby circuit. This is how transformers and wireless power transfer work—the two circuits are magnetically linked, so energy moves without a wire connecting them. Conducting would require a physical path, which isn’t present here, and insulation is what prevents current flow. Coupling is a broader idea about how circuits influence each other, but the specific mechanism for this type of transfer is induction.

Transferring energy without a direct electrical path relies on induction, where a changing magnetic field from one circuit induces a voltage in a nearby circuit. This is how transformers and wireless power transfer work—the two circuits are magnetically linked, so energy moves without a wire connecting them. Conducting would require a physical path, which isn’t present here, and insulation is what prevents current flow. Coupling is a broader idea about how circuits influence each other, but the specific mechanism for this type of transfer is induction.