According to Faraday's Law,a Necessary and Sufficient Condition for an Electromotive

question 37

Multiple Choice

According to Faraday's law,a necessary and sufficient condition for an electromotive force to be induced in a closed circuit loop is the presence in the loop of

• A)a magnetic field.
• B)magnetic materials.
• C)an electric current.
• D)a time-varying magnetic flux.
• E)a time-varying magnetic field.

---

Definitions:

International Trade

The exchange of goods and services across international borders, influenced by comparative advantages among countries.

Specialization

The process of concentrating on and becoming expert in a particular subject or skill, often leading to increased efficiency and productivity in economic activities.

GDP

Short for Gross Domestic Product, it measures the total economic output of a country, representing the sum of all goods and services produced over a specific time period.

Net Exports

The difference between a country's total value of exports and total value of imports.