Practice Parallel Circuits - 2.2 | Electricity & Circuits | IB 8 Physics
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Parallel Circuits

2.2 - Parallel Circuits

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Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What is the total current in a parallel circuit with branches having 2 A and 3 A currents?

💡 Hint: Simply add the currents from each branch.

Question 2 Easy

In a parallel circuit with 12 V applied, what is the current through a 300 Ω resistor?

💡 Hint: Use Ohm's Law.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

In a parallel circuit, the voltage across all components is:

Constant
Variable
Zero

💡 Hint: Think about what each component experiences in a parallel arrangement.

Question 2

True or False: In a parallel circuit, if one branch opens, the other branches are unaffected.

True
False

💡 Hint: Recall the independence of paths in parallel circuits.

2 more questions available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

A parallel circuit consists of two resistors: R_A = 150 Ω and R_B = 450 Ω connected to a 12 V battery. Calculate the total current and the total resistance.

💡 Hint: Break the problem down by calculating current in parts.

Challenge 2 Hard

If a third resistor R_C = 100 Ω is added in parallel to the previous circuit, determine the new total current and resistance.

💡 Hint: Include the new resistor's contribution to current and resistance.

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