Podcast
Questions and Answers
What is the formula to calculate total resistance for resistors connected in series?
What is the formula to calculate total resistance for resistors connected in series?
- $R_s = R_1 + R_2$ (correct)
- $R_s = R_1 \times R_2$
- $R_s = R_1 - R_2$
- $R_s = \frac{R_1}{R_2}$
In an electric circuit with resistors joined in series, what happens to the total resistance compared to the individual resistors?
In an electric circuit with resistors joined in series, what happens to the total resistance compared to the individual resistors?
- It is half the sum of the individual resistances
- It is greater than any individual resistance
- It is equal to the sum of the individual resistances (correct)
- It is less than the sum of the individual resistances
What happens to the potential difference across the equivalent single resistor when multiple resistors are replaced by it in a series circuit?
What happens to the potential difference across the equivalent single resistor when multiple resistors are replaced by it in a series circuit?
- It decreases
- It increases
- It remains the same (correct)
- It cannot be calculated
What happens to the total current in a series circuit when more resistors are added?
What happens to the total current in a series circuit when more resistors are added?
When resistors are connected in parallel, what happens to the total resistance compared to the individual resistors?
When resistors are connected in parallel, what happens to the total resistance compared to the individual resistors?
What happens to the total current in a parallel circuit when more resistors are added?
What happens to the total current in a parallel circuit when more resistors are added?
What is the equivalent resistance (R') when replacing resistors R1 and R2 by a single resistor?
What is the equivalent resistance (R') when replacing resistors R1 and R2 by a single resistor?
In a series circuit, what happens when one component fails?
In a series circuit, what happens when one component fails?
How is the current distributed in a parallel circuit?
How is the current distributed in a parallel circuit?
What is the total resistance (R) in the given scenario?
What is the total resistance (R) in the given scenario?
In a series circuit, why would it be impractical to connect an electric bulb and an electric heater in series?
In a series circuit, why would it be impractical to connect an electric bulb and an electric heater in series?
How does a parallel circuit benefit electrical gadgets with different resistance requirements?
How does a parallel circuit benefit electrical gadgets with different resistance requirements?
What is the relationship between the total current (I) and the individual currents (I1, I2, I3) in a parallel combination of resistors?
What is the relationship between the total current (I) and the individual currents (I1, I2, I3) in a parallel combination of resistors?
What is the equivalent resistance (Rp) of a parallel combination of resistors if the total current (I) flowing through it is given by Ohm's law as I = V/Rp?
What is the equivalent resistance (Rp) of a parallel combination of resistors if the total current (I) flowing through it is given by Ohm's law as I = V/Rp?
In a series circuit, what happens to the current when an ammeter is inserted in series with a resistor?
In a series circuit, what happens to the current when an ammeter is inserted in series with a resistor?
If the potential difference (V) across a combination of resistors in parallel is V, what is the potential difference across each individual resistor?
If the potential difference (V) across a combination of resistors in parallel is V, what is the potential difference across each individual resistor?
What is the relationship between the current (I1) flowing through a resistor R1 and the potential difference (V) across it?
What is the relationship between the current (I1) flowing through a resistor R1 and the potential difference (V) across it?
When measuring the currents through resistors in a parallel combination, what relationship should be observed among I, I1, I2, and I3?
When measuring the currents through resistors in a parallel combination, what relationship should be observed among I, I1, I2, and I3?
