Physics · Electrical Machines
Choose the correct expression for the armature current (I a ) of a DC motor, where V is the terminal voltage, E b is the back e.m.f., and R a is the armature resistance.
Verified Solution4 OptionsUpdated: October 2026👁️1 View
Share:
- 1I a = V - E b R a✓
- 2I a = V × E b R a
- 3I a = V + E b R a
- 4I a = E b R a
Correct answer
I a = V - E b R a
Download Single Question PDF
Save this question and verified answer as a clean study sheet with live clickable link.
👥
Share with Friends & Study Groups
Challenge your peer aspirants on WhatsApp or Telegram to solve this question!
Online Test Series
Start Free Mock Test →Preparing for Physics?
Practice full-length mock tests with real exam timers, instant score analysis, and all-India ranking.
Chapter Practice
Practice Electrical Machines MCQs →Want more practice questions on Electrical Machines?
Solve complete topic-wise tests with detailed solutions on GkGet.
Related Practice Questions
Recommended practice questions in Physics · Electrical Machines