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If a 5 ohm resistor and a 10 ohm resistor are connected in series, what is the v

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Question: If a 5 ohm resistor and a 10 ohm resistor are connected in series, what is the voltage across the 10 ohm resistor when a current of 2 A flows through the circuit?

Options:

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

Correct Answer: 20 V

Solution: 

Voltage across the 10 ohm resistor, V = I * R = 2 A * 10 Ω = 20 V.

If a 5 ohm resistor and a 10 ohm resistor are connected in series, what is the v

Practice Questions

Q1
If a 5 ohm resistor and a 10 ohm resistor are connected in series, what is the voltage across the 10 ohm resistor when a current of 2 A flows through the circuit?
  1. 10 V
  2. 20 V
  3. 5 V
  4. 15 V

Questions & Step-by-Step Solutions

If a 5 ohm resistor and a 10 ohm resistor are connected in series, what is the voltage across the 10 ohm resistor when a current of 2 A flows through the circuit?
  • Step 1: Identify the resistors in the circuit. We have a 5 ohm resistor and a 10 ohm resistor.
  • Step 2: Understand that the resistors are connected in series, which means the same current flows through both resistors.
  • Step 3: Note the current flowing through the circuit, which is given as 2 A.
  • Step 4: Use the formula for voltage across a resistor, which is V = I * R, where V is voltage, I is current, and R is resistance.
  • Step 5: Substitute the values into the formula for the 10 ohm resistor: V = 2 A * 10 ohm.
  • Step 6: Calculate the voltage: V = 20 V.
  • Step 7: Conclude that the voltage across the 10 ohm resistor is 20 V.
  • Ohm's Law – Ohm's Law states that the voltage (V) across a resistor is equal to the current (I) flowing through it multiplied by the resistance (R), expressed as V = I * R.
  • Series Circuits – In a series circuit, the same current flows through all components, and the total resistance is the sum of individual resistances.
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