# Electrical Current MCQs Quiz Online PDF Download

Learn electrical current MCQs, A level physics test for online courses learning and test prep to practice. Electric current, potential difference and resistance quiz has multiple choice questions (MCQ), electrical current quiz questions and answers to learn for Cambridge international as and a level preparation tests.

GCE physics practice test MCQ on semiconductors have electron number density of order with options 10^{24} m^{-3}, 10^{20} m^{-3}, 10^{12} m^{-3} and 10^{23} m^{-3} problem solving skills for viva, competitive exam prep, interview questions with answer key. Free study guide is for online learning electrical current quiz with MCQs to practice test questions with answers.

## MCQs on Electrical Current Quiz PDF 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