Resistances Combination

What is the formula to calculate the equivalent resistance of resistors in series?

• R_eq = R1 - R2 - R3 - ...

• R_eq = R1 * R2 * R3 * ...

• R_eq = R1 / R2 / R3 / ...

• R_eq = R1 + R2 + R3 + ...

What is the formula to calculate the equivalent resistance of resistors in parallel?

• 1/Req = 1/R1 + 1/R2 + 1/R3 + ...

• Req = R1 + R2 + R3 + ...

• Req = R1 * R2 * R3 * ...

• 1/Req = 1/R1 - 1/R2 - 1/R3 - ...

If two resistors of 4 ohms and 6 ohms are connected in series, what is the equivalent resistance?

• 2 ohms

• 15 ohms

• 10 ohms

• 24 ohms

If two resistors of 4 ohms and 6 ohms are connected in parallel, what is the equivalent resistance?

• 10 ohms

• 2.4 ohms

• 0.67 ohms

• 24 ohms

If three resistors of 2 ohms, 3 ohms, and 5 ohms are connected in series, what is the equivalent resistance?

• 15 ohms

• 7 ohms

• 10 ohms

• 1 ohm

If three resistors of 2 ohms, 3 ohms, and 5 ohms are connected in parallel, what is the equivalent resistance?

• 10 ohms

• 1.071 ohms

• 0.5 ohms

• 15 ohms

What happens to the equivalent resistance when resistors are connected in series?

• Remains the same

• Becomes negative

• Decreases

• Increases

What happens to the equivalent resistance when resistors are connected in parallel?

• Decreases

• Remains the same

• Increases

• Becomes negative

How can you simplify a complex circuit to find the equivalent resistance?

• By increasing the voltage in the circuit

• By removing all the resistors from the circuit

• By using the rules for series and parallel resistors

• By adding more resistors to the circuit

Why is it easier to calculate the total resistance in a circuit using the equivalent resistance?

• Equivalent resistance has no effect on the total resistance calculation

• It actually doesn't make it easier, it just confuses things

• Equivalent resistance simplifies the circuit for easier calculation.

• Because it makes the circuit more complicated