Practice Ohm's Law: The Fundamental Relationship - 5.2.5 | Electricity and Magnetism | IB Board Grade 9 Physics
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Knowledge

5.2.5 - Ohm's Law: The Fundamental Relationship

Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

Using Ohm's Law, what is the current when the voltage is 10V and the resistance is 5Ω?

💡 Hint: Use the formula I = V/R.

Question 2

Easy

What unit is used for voltage?

💡 Hint: Think of the V in V = I × R.

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 Ohm's Law?

💡 Hint: Think about what each letter stands for.

Question 2

Increasing the resistance in a circuit with constant voltage will...

  • True
  • False

💡 Hint: Consider how resistance impacts flow.

Solve and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Design a circuit with a voltage supply of 24V and calculate the allowable range of resistance so that the current does not exceed 4A.

💡 Hint: Use Ohm's Law in reverse.

Question 2

A heater rated at 1500W operates on a voltage of 120V. Determine the resistance of the heater.

💡 Hint: Remember the power formula links current and voltage.

Challenge and get performance evaluation