A long wire is wrapped around a length of pipe until the wire is shaped like a spring. This arrangement of wire is called a
a. Solenoid
b. Toroid
c. Current loop
d. Straight wire
e. Flat coil
The arrangement of wire where it is wrapped around a length of pipe to form a spring is called a solenoid.
To answer this type of question, it's helpful to have some background knowledge on the topic. In this case, understanding basic electrical and magnetic concepts can help.
A solenoid is a coil of wire, often wrapped around a cylindrical or other shaped object, that generates a magnetic field when an electric current passes through it. The shape of a solenoid resembles that of a spring, as it consists of loops of wire wound closely together.
To find the answer to this question without any prior knowledge, you could use the process of elimination. Let's break down the options:
a. Solenoid: This is a possible answer since it describes the arrangement of wire wrapped around a pipe to form a spring.
b. Toroid: A toroid is a donut-shaped object formed by winding wire into a coil and connecting the ends. It doesn't match the description of a wire wrapped around a pipe.
c. Current loop: While a solenoid can be considered a type of current loop, this term doesn't specifically describe the wire arrangement around a pipe.
d. Straight wire: This describes a wire that is not coiled or wrapped around anything, so it's not the correct answer.
e. Flat coil: This term does not accurately describe a wire wrapped around a pipe in a spring-like manner.
By the process of elimination, we can conclude that the correct answer is a. Solenoid.