Electric Current and Drift Velocity MCQs

Prepare for Electric Current and Drift Velocity MCQs with verified questions, past-paper solutions, and conceptual explanations for CSS, PMS, FPSC, PPSC, and NTS examinations.

206 Solved Questions • 155 Mins Practice • Updated for 2026 Competitive Exams
MCQS
2026 Solved Edition · Updated October 2026 · Verified Editorial Standards

Welcome to the verified preparation module for Electric Current and Drift Velocity MCQs on McqsMind. This comprehensive set offers solved multiple-choice questions with answers, detailed explanations, and authentic past-paper style questions aligned with the latest syllabus of Current Electricity (Physics).

100% Verified Answer Keys CSS, PMS, FPSC, PPSC, NTS Ready 2026/2027 Syllabus Guidelines

Direct Definition & Conceptual Scope

AEO Verified

Electric Current and Drift Velocity constitutes an essential examination topic within Physics, evaluating theoretical principles, historical context, and practical problem-solving applications. On MCQsMind, candidates practice verified past-paper solutions, conceptual breakdowns, and syllabus-aligned questions tailored for CSS, PMS, and competitive screening examinations.

Solved Questions

Practice with answers, explanations, and exam-focused revision notes.

206 MCQs Page 4

High-Yield Exam Revision Cheat Sheet & Mnemonics

Essential exam standard definitions and formulas for rapid 2-minute revision

High-Frequency Articles
  • Art. 6: High Treason
  • Art. 9: Security of Person
  • Art. 19-A: Right to Information
  • Art. 25-A: Free Education (5–16 yrs)
Federalism & Provinces
  • Art. 140-A: Local Government
  • Art. 153: Council of Common Interests
  • Art. 160: National Finance Commission
  • Art. 175-A: Judicial Commission (JCP)
Islamic Provisions
  • Art. 2: Islam as State Religion
  • Art. 2A: Objectives Resolution Substantive
  • Art. 203: Federal Shariat Court (FSC)
  • Art. 228: Council of Islamic Ideology
Need a quick refresher on Electric Current and Drift Velocity key concepts?
Review Topic Notes on Page 1 →

Want adaptive tracking for this topic?

Login to save wrong answers to your Mistake Bank and build your weakness heatmap automatically.

Session Progress 0 / 0 Solved
Reveal answers to start tracking your session progress!
31
When there is no electric field, there is no current in a circuit because
Share
32
The phase angle between the voltage and current in an a.c. circuit through a resistor is
Share
33
In an NPN transistor circuit the collector current is 10 mA. If 90% of the electrons are able to reach the collector then
Share
34
Why FET amplifiers are called voltage controlled devices?
Share
35
120. The reason of current flow in PN junction in forward bias is
Share
36
When plate voltage in a diode valve is increased from 100 V to 150 V then plate current increases from 7.5 mA to 12 mA. The dynamic plate resistance will be
Share
37
328. Current is flowing with a current density J = 480 amp/cm2 in a copper wire. Assuming that each copper atom contributes one free electron and given that Avogadro number = 6.0 × 10^23 atoms/mole, density of copper = 9.0 gm/cm^3, atomic weight of copper = 64 gm/mole, electronic charge = 1.6 × 10^-19 coulomb, the drift velocity of electrons is
Share
38
If α = 0.98 and current through emitter I_e = 20 mA, the value of β is
Share
39
If a resistance is connected in parallel with a galvanometer, the resulting instrument is called
Share
40
25. If 10% of the main current is to be passed through the moving coil galvanometer of resistance 99 ohm, then the required shunt resistance will be
Share
Pedagogical Syllabus Blueprint

Electric Current and Drift Velocity MCQs: Preparation Strategy & Exam Blueprint

Examination Weightage & Commission Distribution

In Pakistan's premier competitive examinations—including the Federal Public Service Commission (FPSC General Recruitment & CSS MPT), Punjab Public Service Commission (PPSC Lecturer, Tehsildar & PMS Screening), KPPSC, SPSC, and BPSC—questions derived from Electric Current and Drift Velocity MCQs consistently constitute a decisive 10% to 25% weightage of the Current Electricity paper. Testing agencies frequently evaluate both foundational factual recall and deeper analytical comprehension, requiring aspirants to master key dates, statutory articles, constitutional clauses, and thematic definitions.

High-Yield Conceptual Pillars & Distractor Analysis

Historical trend analysis across past five-year examination cycles demonstrates that examiner traps frequently involve closely matched numerical alternatives, chronologically contiguous treaties, and semantic subtleties in statutory phraseology. When preparing Electric Current and Drift Velocity MCQs, candidates must deliberately review the underlying rationale provided for every question rather than merely memorizing raw answer options. Understanding why incorrect distractors fail is the most reliable predictor of achieving top percentiles in computerized and optical mark recognition (OMR) screening tests.

Negative Marking Mitigation & Time Management Protocol

For examinations enforcing negative marking penalties (such as PPSC's 0.25-mark deduction per erroneous response or NTS gatekeeper quotas), an aggressive elimination technique must be deployed. Candidates should systematically rule out improbable options first to elevate probability thresholds from 25% to 50% or 100%. Allocating an average of 45 to 60 seconds per item during mock trials builds the psychological stamina and cognitive precision required to complete 100-question papers within official 90-minute time limits.

Recommended Reference Sources & Statutory Reading

To achieve definitive conceptual mastery in Physics, candidates are advised to cross-reference our solved explanations with primary gazettes, statutory texts, and canonical academic textbooks. Verifying controversial questions against authentic official repositories guarantees that prospective civil servants and professional candidates present incontestable answers during both optical paper evaluations and viva voce departmental interviews.