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Journey of Electric Current

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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 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 Signup and view all the answers

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

Create a constant voltage Signup and view all the answers

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

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

What is the unit of power?

Watts 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 Signup and view all the answers

What is Ohm's law?

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