What happens to the current in a circuit if the voltage is tripled while the res

Practice Questions

Q1
What happens to the current in a circuit if the voltage is tripled while the resistance remains constant? (2023)
  1. It triples.
  2. It halves.
  3. It remains the same.
  4. It increases by a factor of nine.

Questions & Step-by-Step Solutions

What happens to the current in a circuit if the voltage is tripled while the resistance remains constant? (2023)
  • Step 1: Understand Ohm's Law, which states that Current (I) equals Voltage (V) divided by Resistance (R). This is written as I = V/R.
  • Step 2: Identify the initial conditions: let's say the initial voltage is V and the resistance is R.
  • Step 3: If the voltage is tripled, the new voltage becomes 3V.
  • Step 4: Since the resistance (R) remains constant, we can use the new voltage in Ohm's Law: I = (3V) / R.
  • Step 5: Simplify the equation: I = 3(V/R).
  • Step 6: Notice that V/R is the original current (I). So, we can say I = 3I (the original current).
  • Step 7: This means that the current will also triple when the voltage is tripled while resistance stays the same.
No concepts available.
Soulshift Feedback ×

On a scale of 0–10, how likely are you to recommend The Soulshift Academy?

Not likely Very likely