Recent Lessons

Show all results for ""

Journey of Electric Current

Choose a study mode

Play Quiz

Study Flashcards

Spaced Repetition

Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Download our mobile app to listen on the go

Get App

Questions and Answers

According to Ohm's Law, what is the relationship between voltage, current, and resistance?

Voltage is directly proportional to resistance
Voltage is inversely proportional to current
Voltage is inversely proportional to resistance
Voltage is directly proportional to current (correct)

What is the unit of measurement for current?

Ohms
Volts
Coulombs
Amperes (correct)

Which direction is the convention for the flow of current?

From positive to negative (correct)
From high voltage to low voltage
From low voltage to high voltage
From negative to positive

Which of the following best describes electric current?

The flow of electrons through a wire (C) Signup and view all the answers

What is the relationship between voltage and electric charge?

Voltage gives charged particles the energy to move from one place to another (A) Signup and view all the answers

What did scientists in the 19th century struggle to do in regards to electricity?

Create a constant voltage (B) Signup and view all the answers

Which equation represents the relationship between power, current, and voltage in a circuit?

$P = I \cdot V$ (C) Signup and view all the answers

What is the unit of power?

Watts (A) Signup and view all the answers

What happens to the resistance of conductive materials when they are cooled to extremely low temperatures?

The resistance decreases (B) Signup and view all the answers

What is Ohm's law?

The relationship between resistance, current, and voltage (B) Signup and view all the answers

Flashcards are hidden until you start studying