Question

closed or open? is the circuit closed or open? drag the blue boxes over each image below. closed circuit open circuit

Explanation:

Step1: Recall circuit definitions

A closed circuit has a complete path for current. An open circuit has a break.

Step2: Analyze each image

First row:

• First image: No power source, not a circuit.
• Second image: Complete path (closed).
• Third image: Switch open (break, open).

Second row:

• First image: Complete path (closed).
• Second image: Complete path (closed).
• Third image: Complete path (closed).

Answer:

First row: Open (first image - no power source, not a valid circuit), Closed (second image), Open (third image - switch open).
Second row: Closed (first image), Closed (second image), Closed (third image).