Question

Assertion (A): Two long parallel wires, freely suspended and connected in series to a battery, move apart.
Reason (R):Two wires carrying current in opposite directions repel each other.

• A. Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).
• B. Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the Assertion (A).
• C. Assertion (A) is true, but Reason (R) is false.
• D. Assertion (A) is false and Reason (R) is also false.

Hint:

The force between two current-carrying wires depends on the direction of the currents. When currents are in opposite directions, the wires repel each other, and when currents are in the same direction, the wires attract each other.

Answer 1

The Correct Option is A

The assertion states that two long parallel wires, freely suspended and connected to a battery in series, move apart. This behavior is due to the magnetic forces acting on the wires. When electric current flows through the wires, they generate magnetic fields around them.
The reason states that two wires carrying current in opposite directions repel each other. This is a result of the force between two parallel currents, described by Ampère's Law. When currents flow in opposite directions in parallel wires, the magnetic fields generated by the wires exert a repulsive force on each other, causing the wires to move apart.
Thus, both the assertion and the reason are true, and the reason correctly explains the assertion.
Thus, the correct answer is: \[ \text{(A) Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).} \]