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Combination of Resistors: Series & Parallel Video Lecture | Physics for EmSAT Achieve

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FAQs on Combination of Resistors: Series & Parallel Video Lecture - Physics for EmSAT Achieve

1. What is the difference between series and parallel combination of resistors?
Ans. In series combination, resistors are connected end-to-end, and the total resistance is the sum of individual resistances. In parallel combination, resistors are connected side by side, and the total resistance is less than the smallest resistance in the combination.
2. How do you calculate the total resistance in a series combination of resistors?
Ans. To calculate the total resistance in a series combination, you simply add up the individual resistances. The formula is: Total Resistance = Resistance1 + Resistance2 + Resistance3 + ...
3. How do you calculate the total resistance in a parallel combination of resistors?
Ans. To calculate the total resistance in a parallel combination, you can use the formula: 1/Total Resistance = 1/Resistance1 + 1/Resistance2 + 1/Resistance3 + ...
4. Why is the total resistance in a parallel combination of resistors less than the smallest resistance?
Ans. In a parallel combination, each resistor provides an alternative path for the current to flow. As a result, the total current is divided among the resistors, reducing the overall resistance. The smallest resistance offers the least resistance to the current, so the total resistance is less than that.
5. Can a circuit have both series and parallel combinations of resistors?
Ans. Yes, a circuit can have both series and parallel combinations of resistors. This is known as a combination circuit. In such circuits, resistors can be connected in series or parallel, or even a combination of both, depending on the circuit's design and requirements.
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