In a circuit with a 24V battery and two 12Ω resistors in parallel, what is the t

Practice Questions

Q1
In a circuit with a 24V battery and two 12Ω resistors in parallel, what is the total current supplied by the battery?
  1. 1A
  2. 2A
  3. 3A
  4. 4A

Questions & Step-by-Step Solutions

In a circuit with a 24V battery and two 12Ω resistors in parallel, what is the total current supplied by the battery?
  • Step 1: Identify the voltage of the battery, which is 24V.
  • Step 2: Identify the resistance of each resistor, which is 12Ω.
  • Step 3: Since the resistors are in parallel, use the formula for total resistance: R = 1 / (1/R1 + 1/R2).
  • Step 4: Substitute the values: R = 1 / (1/12 + 1/12).
  • Step 5: Calculate the sum inside the parentheses: 1/12 + 1/12 = 2/12 = 1/6.
  • Step 6: Now, take the reciprocal: R = 1 / (1/6) = 6Ω.
  • Step 7: Use Ohm's Law to find the total current: I = V / R.
  • Step 8: Substitute the values: I = 24V / 6Ω.
  • Step 9: Calculate the total current: I = 4A.
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