If a resistor is connected to a 9V battery and the current flowing through it is

Practice Questions

Q1
If a resistor is connected to a 9V battery and the current flowing through it is 3A, what is the resistance of the resistor?
  1. 1 Ω
  2. 3 Ω
  3. 9 Ω
  4. 27 Ω

Questions & Step-by-Step Solutions

If a resistor is connected to a 9V battery and the current flowing through it is 3A, what is the resistance of the resistor?
  • Step 1: Identify the values given in the problem. We have a voltage (V) of 9 volts and a current (I) of 3 amperes.
  • Step 2: Recall Ohm's Law, which states that Resistance (R) is equal to Voltage (V) divided by Current (I). The formula is R = V / I.
  • Step 3: Substitute the values into the formula. Replace V with 9 and I with 3: R = 9 V / 3 A.
  • Step 4: Perform the division. Calculate 9 divided by 3, which equals 3.
  • Step 5: State the result. The resistance of the resistor is 3 ohms (Ω).
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