Ohm's Law Calculations

Front

What is Ohm's Law?

Back

Ohm's Law states that the current (I) flowing through a conductor between two points is directly proportional to the voltage (V) across the two points and inversely proportional to the resistance (R) of the conductor. It is expressed as V = I * R.

Front

What is the formula to calculate resistance using Ohm's Law?

Back

R = V / I

Front

What is the unit of resistance in Ohm's Law calculations?

Back

Ohm (Ω)

Front

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

Back

The current is doubled.

Front

What is the total resistance in a parallel circuit with two resistors of 6 ohms and 3 ohms?

Back

2 ohms

Front

How do you calculate the total resistance in a series circuit?

Back

In a series circuit, the total resistance (R_total) is the sum of all individual resistances: R_total = R1 + R2 + R3 + ...

Front

What happens to the current if the resistance in a circuit is increased while the voltage remains constant?

Back

The current decreases.

Front

What is the relationship between voltage, current, and power in an electrical circuit?

Back

Power (P) is the product of voltage (V) and current (I): P = V * I.

Front

What is the formula to calculate current using Ohm's Law?

Back

I = V / R

Front

What is the formula to calculate voltage using Ohm's Law?

Back

V = I * R