An Ordinary Magnetic Compass Is Placed Flat on the Ground

question 8

Multiple Choice

An ordinary magnetic compass is placed flat on the ground.A wire carrying a large current i from east to west is placed directly above the compass.The end of the compass needle marked "N" will point:

• A)north
• B)south
• C)east
• D)west
• E)the compass will act as an electric motor, hence the needle will keep rotating

---

Definitions:

Indicator Variables

Indicator Variables, also known as dummy variables, are numeric variables used in statistical models to represent categorical data with two or more categories.

Regression Model

A statistical technique used to analyze and model the relationship between a dependent variable and one or more independent variables.

Logistic Regression

A statistical method used for predicting binary outcomes based on one or more independent variables.

Indicator Variables

Variables used in statistical models to represent subgroups with values typically set to 0 or 1, indicating the absence or presence of a characteristic.