If a circuit has a total resistance of 12Ω and a current of 1.5A flows through i

Practice Questions

Q1
If a circuit has a total resistance of 12Ω and a current of 1.5A flows through it, what is the total voltage supplied by the battery?
  1. 18V
  2. 12V
  3. 6V
  4. 24V

Questions & Step-by-Step Solutions

If a circuit has a total resistance of 12Ω and a current of 1.5A flows through it, what is the total voltage supplied by the battery?
Correct Answer: 18V
  • Step 1: Identify the formula to use. We will use Ohm's Law, which states that Voltage (V) = Current (I) * Resistance (R).
  • Step 2: Write down the values given in the question. The total resistance (R) is 12Ω and the current (I) is 1.5A.
  • Step 3: Substitute the values into the formula. Replace I with 1.5A and R with 12Ω in the formula V = I * R.
  • Step 4: Calculate the voltage. Multiply 1.5A by 12Ω to get V = 1.5 * 12.
  • Step 5: Perform the multiplication. 1.5 * 12 equals 18.
  • Step 6: State the final answer. The total voltage supplied by the battery is 18V.
  • Ohm's Law – Ohm's Law states that the voltage (V) across a conductor is directly proportional to the current (I) flowing through it, with the resistance (R) being the constant of proportionality, expressed as V = I * R.
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