Practice Circuit Diagram in Physics
Use these practice problems to test your method after reviewing the concept explanation and worked examples.
Quick Recap
A simplified drawing of an electrical circuit using standardized symbols for components like batteries, resistors, switches, and bulbs.
A circuit diagram is like a map for electricity — it shows what's connected to what without drawing realistic pictures.
Example 1
easyA circuit diagram shows a 6 \text{ V} battery connected to a 2 \text{ } \Omega resistor with an ammeter in series. What reading does the ammeter show?
Example 2
mediumA circuit diagram shows a 10 \text{ V} battery, a 5 \text{ } \Omega resistor, and a voltmeter connected in parallel across the resistor. The circuit also has a 2 \text{ A} current. What does the voltmeter read? Is the voltmeter connection correct?
Example 3
mediumA circuit diagram shows three resistors: R_1 = 2 \text{ } \Omega in series with a parallel combination of R_2 = 6 \text{ } \Omega and R_3 = 3 \text{ } \Omega. A 12 \text{ V} battery powers the circuit. What is the total current?
Example 4
hardA circuit diagram shows a 12 \text{ V} battery connected to: R_1 = 4 \text{ } \Omega in series with two parallel branches — one with R_2 = 6 \text{ } \Omega and the other with R_3 = 3 \text{ } \Omega in series with R_4 = 3 \text{ } \Omega. Find the total current and the current through R_2.