WAEC offline past questions - with all answers and explanations in one app - Download for free
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709

Physics Past Questions

Clear Selections
Change Subject Post a Question Check Syllabus Study My Bookmarks Past Questions Videos Watch Video Lessons Download App

WAEC offline past questions - with all answers and explanations in one app - Download for free
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
Download WAEC May/June App - Get all past questions and answers, 100% offline - 43208
6

In a p-type semiconductor, the?

  • A. number of holes are equal to the number of electrons
  • B. electrical resistivity increases
  • C. electrons are the majority charge carriers
  • D. holes are the majority charge carriers
View Answer & Discuss (2) WAEC 2016
7

An electrical device has 50 turns in its primary coil  and 20 turns in the secondary coil. The device can be a\an?

 

  • A. step-up transformer
  • B. step-down transformer
  • C. d.c generator
  • D. a.c generator
View Answer & Discuss (2) WAEC 2020
8

In doping an intrinsic semiconductor to produce a p-type semiconductor,

  • A. the semiconductor is heated up
  • B. a donor element is added
  • C. an acceptor element is added
  • D. the semiconductor is conducted to a battery
View Answer & Discuss WAEC 2022
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
WAEC offline past questions - with all answers and explanations in one app - Download for free
Download WAEC May/June App - Get all past questions and answers, 100% offline - 43208
Start a Free Practice Test
 
WAEC offline past questions - with all answers and explanations in one app - Download for free
Download WAEC May/June App - Get all past questions and answers, 100% offline - 43208
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts