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In a series circuit, if one resistor has a resistance of 5 Ω and another has 10

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Question: In a series circuit, if one resistor has a resistance of 5 Ω and another has 10 Ω, what is the total resistance?

Options:

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

Correct Answer: 15 Ω

Solution: 

In a series circuit, total resistance R_total = R1 + R2 = 5 Ω + 10 Ω = 15 Ω.

In a series circuit, if one resistor has a resistance of 5 Ω and another has 10

Practice Questions

Q1
In a series circuit, if one resistor has a resistance of 5 Ω and another has 10 Ω, what is the total resistance?
  1. 5 Ω
  2. 10 Ω
  3. 15 Ω
  4. 20 Ω

Questions & Step-by-Step Solutions

In a series circuit, if one resistor has a resistance of 5 Ω and another has 10 Ω, what is the total resistance?
  • Step 1: Identify the resistances of the resistors in the series circuit. Here, we have R1 = 5 Ω and R2 = 10 Ω.
  • Step 2: Use the formula for total resistance in a series circuit, which is R_total = R1 + R2.
  • Step 3: Substitute the values into the formula: R_total = 5 Ω + 10 Ω.
  • Step 4: Perform the addition: 5 Ω + 10 Ω = 15 Ω.
  • Step 5: Conclude that the total resistance in the series circuit is 15 Ω.
  • Series Circuit Resistance – In a series circuit, the total resistance is the sum of the individual resistances.
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