Electrical Current MCQs Quiz Online PDF Download

Practice electrical current MCQs, A level physics MCQ test for online learning. Electric current, potential difference and resistance quiz has multiple choice questions (MCQ), electrical current quiz questions and answers to practice as semiconductors have electron number density of order, answer key help with choices as 1024 m-3, 1020 m-3, 1012 m-3 and 1023 m-3 problem solving for viva, competitive exam preparation, interview questions. 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

  1. 1024 m-3
  2. 1020 m-3
  3. 1012 m-3
  4. 1023 m-3

D

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

  1. BIL cosθ
  2. BIL sinθ
  3. BIL tanθ
  4. BL sinθ

B

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

  1. zero
  2. infinite
  3. 2 times
  4. same

A

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

  1. electronic current
  2. conventional current only
  3. positronic current
  4. protonic current

B