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What is the total resistance of two 10 ohm resistors connected in series?

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Question: What is the total resistance of two 10 ohm resistors connected in series?

Options:

  1. 5 ohms
  2. 10 ohms
  3. 20 ohms
  4. 15 ohms

Correct Answer: 20 ohms

Solution: 

In series, R_eq = R1 + R2 = 10 + 10 = 20 ohms.

What is the total resistance of two 10 ohm resistors connected in series?

Practice Questions

Q1
What is the total resistance of two 10 ohm resistors connected in series?
  1. 5 ohms
  2. 10 ohms
  3. 20 ohms
  4. 15 ohms

Questions & Step-by-Step Solutions

What is the total resistance of two 10 ohm resistors connected in series?
Correct Answer: 20 ohms
  • Step 1: Identify the resistors. We have two resistors, each with a resistance of 10 ohms.
  • Step 2: Understand that when resistors are connected in series, their total resistance is the sum of their individual resistances.
  • Step 3: Write down the formula for total resistance in series: R_eq = R1 + R2.
  • Step 4: Substitute the values of the resistors into the formula: R_eq = 10 ohms + 10 ohms.
  • Step 5: Calculate the total resistance: R_eq = 20 ohms.
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