Professional Courses
Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.
Categories
Interactive Games
Fun, engaging games to boost memory, math fluency, typing speed, and English skillsβperfect for learners of all ages.
Typing
Memory
Math
English Adventures
Knowledge
Enroll to start learning
Youβve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the formula for calculating power in terms of current and voltage?
π‘ Hint: Remember, power is the product of current and voltage.
Question 2
Easy
Define EMF in an electrical circuit.
π‘ Hint: Think of how batteries are rated.
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 does EMF stand for?
- Electromotive Factor
- Electromotive Force
- Electrical Maximum Force
π‘ Hint: Itβs measured in volts and relates to battery capabilities.
Question 2
True or False: Increasing resistance always increases power loss in a circuit.
- True
- False
π‘ Hint: Think about how current and resistance interact.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A conductor has a resistance of 2Ξ©, and a voltage of 12V is applied across it. Calculate the current flowing through the conductor and the power dissipated.
π‘ Hint: Follow through Ohm's law for current and then use it to find power.
Question 2
Explain how internal resistance in a battery affects the overall voltage delivered to an external load when the battery is under load.
π‘ Hint: Review the formulas related to EMF and voltage across resistors.
Challenge and get performance evaluation