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What is the formula for the equivalent resistance of two resistors R1 and R2 in

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Question: What is the formula for the equivalent resistance of two resistors R1 and R2 in series?

Options:

  1. R_eq = R1 + R2
  2. R_eq = R1 * R2 / (R1 + R2)
  3. R_eq = R1 - R2
  4. R_eq = R1 / R2

Correct Answer: R_eq = R1 + R2

Solution: 

The equivalent resistance of two resistors in series is simply the sum of their resistances: R_eq = R1 + R2.

What is the formula for the equivalent resistance of two resistors R1 and R2 in

Practice Questions

Q1
What is the formula for the equivalent resistance of two resistors R1 and R2 in series?
  1. R_eq = R1 + R2
  2. R_eq = R1 * R2 / (R1 + R2)
  3. R_eq = R1 - R2
  4. R_eq = R1 / R2

Questions & Step-by-Step Solutions

What is the formula for the equivalent resistance of two resistors R1 and R2 in series?
Correct Answer: R_eq = R1 + R2
  • Step 1: Identify the two resistors you have, which are R1 and R2.
  • Step 2: Understand that when resistors are in series, the total resistance increases.
  • Step 3: To find the equivalent resistance, you need to add the values of R1 and R2 together.
  • Step 4: Write the formula for equivalent resistance as R_eq = R1 + R2.
  • Step 5: If you have specific values for R1 and R2, plug them into the formula to calculate R_eq.
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