8.4 Ohm's Law Questions

Front

What are the SI units of resistance?

Back

Ohms [Ω]

Front

What are the SI units of current?

Back

Amperes [A]

Front

What are the SI units of voltage?

Back

Volts [V]

Front

What component does the symbol represent? (Fuse)

Back

Fuse

Front

What component does the symbol represent? (Switch)

Back

Switch

Front

What is 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.

Front

What is the formula for calculating resistance?

Back

Resistance (R) = Voltage (V) / Current (I)

Front

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

Back

Voltage (V) = Current (I) x Resistance (R)

Front

What is the unit of electrical power?

Back

Watts [W]

Front

How do you calculate electrical power using Ohm's Law?

Back

Power (P) = Voltage (V) x Current (I) = I² x R = V² / R