If a current is passed through a spring, the spring will be ____________.

Correct option is B

Correct Answer: (b) Compress

When a current flows through a spring, it generates a magnetic field around it. According to Ampere's Law, the current flowing through the spring produces a magnetic field that creates a force between adjacent coils of the spring. Since the current in each coil flows in the same direction, the magnetic field causes an attractive force between the coils, leading the spring to compress.

Information Booster:

● Electromagnetic Force: The magnetic force generated by the current causes the spring coils to attract each other.

● Current Direction: The compression depends on the current's magnitude and direction.

● Applications: This principle is used in electromagnetic devices, like solenoids, to create motion.

● Thermal Effect: Passing current through the spring may also produce heat due to resistance, but it does not significantly affect the spring's compression.

● Magnetic Effect: The stronger the current, the more pronounced the magnetic effect and compression.