A Solenoid of Radius 1

question 33

Multiple Choice

A solenoid of radius 1.1 cm, carrying a current of 2.2 A, produces a magnetic field at its center of 0.28 T. How many turns per unit length does the solenoid have?

• A) 1.0 × 10⁵ m⁻¹
• B) 1.0 × 10⁻⁹ m⁻¹
• C) 1.1 × 10³ m⁻¹
• D) 2.2 × 10³ m⁻¹
• E) 7.0 × 10³ m⁻¹

---

Definitions:

Primary Circuit

A primary circuit is the fundamental part of an electrical system that provides direct current flow from a power source to various electrical components.

Front Axle

The forward-most axle of a vehicle, which may steer and often bears much of the vehicle's weight.

Service Brakes

The primary braking system of a vehicle, typically operated by foot, responsible for slowing or stopping the vehicle under normal driving conditions.

Emergency/Parking Brakes

A secondary braking system designed to keep a vehicle stationary when parked and act as a backup in case of the primary brake system's failure.