A Motor Has an Internal Resistance of 13 Ω

question 14

Multiple Choice

A motor has an internal resistance of 13 Ω.When running,the motor has a back emf of 35 V and draws a current of 3.9 A.What is the supply voltage in this case?

• A) 35 V
• B) 51 V
• C) 86 V
• D) 16 V
• E) ​38 V

---

Definitions:

Complement

The set or amount that completes something, often used in mathematics to refer to the set of elements not in a given set.

Complement

In set theory, the complement of a set contains all elements not in the original set within a given universal set. In grammar, it is a word or phrase needed to complete the meaning of an expression.

Obverse

The counterpart or opposite in a relationship, often used in reference to geometric figures or logical propositions.

Proposition

A speech or affirmation that indicates an opinion or assessment, liable to be correct or incorrect.