An Ideal Solenoid of Length 10 Cm Consists of a Wire

question 134

Multiple Choice

An ideal solenoid of length 10 cm consists of a wire wrapped tightly around a wooden core. The magnetic field strength is $4.0 \mathrm {~T}$ inside the solenoid. If the solenoid is stretched to 25 cm by applying a force to it, what does the magnetic field become?

• A) 1.6 T
• B) 10.0 T
• C) 20 T
• D) 4.0 T

---

Definitions:

Pumps

Mechanical devices used to move fluids (liquids or gases) from one place to another, often by creating a vacuum or pressure difference.

Crop

A crop is a plant or plant product that can be grown and harvested extensively for profit or subsistence.

Diagram

A basic illustration that depicts the look, framework, or function of an object in a diagrammatic form.

Least Efficient

Pertaining to the lowest level of effectiveness or productivity in terms of energy, cost, or time.