Flashcard on Ohm's Law and Resistance

Front

What is the unit of current?

Back

Ampere

Front

Calculate the resistance for a resistor with a voltage of 7.5 V and a current of 0.48 A.

Back

15.6 Ω

Front

What is the unit of resistance?

Back

Ohm

Front

What is the formula for Ohm's Law?

Back

V = I x R

Front

What is the unit of voltage?

Back

Volt

Front

Define Ohm's Law.

Back

Ohm's Law states that the current through a conductor between two points is directly proportional to the voltage across the two points, provided the temperature remains constant.

Front

What does resistance measure in an electrical circuit?

Back

Resistance measures how much a material opposes the flow of electric current.

Front

What is the relationship between voltage, current, and resistance?

Back

According to Ohm's Law, V = I x R, where V is voltage, I is current, and R is resistance.

Front

If the voltage is doubled while resistance remains constant, what happens to the current?

Back

The current is also doubled.

Front

What is the formula to calculate resistance using voltage and current?

Back

R = V / I