# Electrical Current MCQs Quiz Online PDF Book Download

Electrical current multiple choice questions (MCQs), electrical current quiz answers to learn A level physics courses for online degrees. Electric current, potential difference and resistance MCQs with answers, electrical current quiz questions and answers for undergraduate degree. Learn electric power, electrical resistance, current equation, electrical current test prep for physics certifications.

Learn electric current, potential difference and resistance test MCQs: semiconductors have electron number density of order, with choices 10^{24} m^{-3}, 10^{20} m^{-3}, 10^{12} m^{-3}, and 10^{23} m^{-3} for undergraduate degree. Practice merit scholarships assessment test, online learning electrical current quiz questions for competitive assessment in physics major.

## MCQ on Electrical CurrentQuiz Book Download

MCQ: Semiconductors have electron number density of order

- 10
^{24}m^{-3} - 10
^{20}m^{-3} - 10
^{12}m^{-3} - 10
^{23}m^{-3}

D

MCQ: If magnetic flux density and current are at right angles, then component of force acting on conductor is

- BIL cosθ
- BIL sinθ
- BIL tanθ
- BL sinθ

B

MCQ: When current is parallel to magnetic fields, force on conductor is

- zero
- infinite
- 2 times
- same

A

MCQ: If direction of current is from positive to negative, then it is called

- electronic current
- conventional current only
- positronic current
- protonic current

B