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

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Question: What happens to the current in a circuit if the voltage is tripled while the resistance remains constant? (2023)

Options:

Correct Answer: It triples.

Exam Year: 2023

Solution:

According to Ohm\'s Law, if the voltage (V) is tripled and resistance (R) remains constant, the current (I) will also triple (I = V/R).

What happens to the current in a circuit if the voltage is tripled while the resistance remains constant? (2023)

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.

Ohm's Law – Ohm's Law states that the current in a circuit is directly proportional to the voltage and inversely proportional to the resistance (I = V/R).