If the resistance of a wire is doubled, what happens to the current flowing thro

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Question: If the resistance of a wire is doubled, what happens to the current flowing through it when the voltage remains constant?

Options:

Correct Answer: Halves

Solution:

According to Ohm\'s law, if resistance increases while voltage remains constant, current decreases.

If the resistance of a wire is doubled, what happens to the current flowing through it when the voltage remains constant?

If the resistance of a wire is doubled, what happens to the current flowing through it when the voltage remains constant?

Correct Answer: Current decreases.

Step 1: Understand Ohm's Law, which states that Current (I) = Voltage (V) / Resistance (R).
Step 2: Identify that in this scenario, the voltage (V) is constant.
Step 3: Recognize that if the resistance (R) is doubled, the new resistance becomes 2R.
Step 4: Substitute the new resistance into Ohm's Law: I = V / (2R).
Step 5: Notice that the current (I) is now half of what it was before because you are dividing the same voltage by a larger number (2R).
Step 6: Conclude that if the resistance is doubled while the voltage remains constant, the current flowing through the wire decreases.

Ohm's Law – Ohm's Law states that current (I) is directly proportional to voltage (V) and inversely proportional to resistance (R), expressed as I = V/R.