Practice Parallel Circuit Investigation - 5.2 | Electricity & Circuits | IB IMYP Grade 8 Physics
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Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What happens to the total current when a branch is added to a parallel circuit?

💡 Hint: Think about how water flows in multiple hoses.

Question 2

Easy

What is the same across each resistor in a parallel circuit?

💡 Hint: Remember how batteries supply voltage.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What is the formula to calculate total current in a parallel circuit?

  • I_total = I_1 + I_2 + I_3
  • I_total = V / R
  • I_total = R_eq / V

💡 Hint: Think about adding flows together.

Question 2

In a parallel circuit, the voltage across all components is ___.

  • True
  • False

💡 Hint: Remember what they share in common.

Solve and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

You have a 9V battery connected to two parallel branches, each with a 220 Ω resistor. If the second branch is replaced with a 110 Ω resistor, what is the new equivalent resistance?

💡 Hint: Use the parallel resistor formula.

Question 2

In a parallel circuit with four branches (220 Ω, 220 Ω, 100 Ω, and a 330 Ω resistor), calculate total current when powered by a 9V battery.

💡 Hint: Calculate equivalent resistance first.

Challenge and get performance evaluation