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If two resistors of 4Ω and 6Ω are connected in series, what is the total voltage

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Question: If two resistors of 4Ω and 6Ω are connected in series, what is the total voltage across them if the current is 2A? (2022)

Options:

  1. 20V
  2. 12V
  3. 8V
  4. 10V

Correct Answer: 20V

Exam Year: 2022

Solution: 

Total resistance R = 4Ω + 6Ω = 10Ω. Voltage V = I * R = 2A * 10Ω = 20V.

If two resistors of 4Ω and 6Ω are connected in series, what is the total voltage

Practice Questions

Q1
If two resistors of 4Ω and 6Ω are connected in series, what is the total voltage across them if the current is 2A? (2022)
  1. 20V
  2. 12V
  3. 8V
  4. 10V

Questions & Step-by-Step Solutions

If two resistors of 4Ω and 6Ω are connected in series, what is the total voltage across them if the current is 2A? (2022)
  • Step 1: Identify the resistors. We have one resistor of 4Ω and another of 6Ω.
  • Step 2: Calculate the total resistance by adding the two resistors together: 4Ω + 6Ω = 10Ω.
  • Step 3: Identify the current flowing through the circuit, which is given as 2A.
  • Step 4: Use the formula for voltage, which is Voltage (V) = Current (I) * Resistance (R).
  • Step 5: Substitute the values into the formula: V = 2A * 10Ω.
  • Step 6: Calculate the voltage: 2A * 10Ω = 20V.
  • Ohm's Law – Ohm's Law states that the voltage across a resistor is equal to the product of the current flowing through it and the resistance (V = I * R).
  • Series Resistors – When resistors are connected in series, the total resistance is the sum of the individual resistances.
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