1. >UP Board XII
  2. >Physics
Found 28  QuestionsSET DEFAULT
Selected Filters
    UP Board XII Physics Electromagnetic Wave
Exams
Years
Subjects
Topics

List of top Physics Questions on Electromagnetic Wave asked in UP Board XII

In electromagnetic waves, phase difference between electric and magnetic field vectors is:
  • UP Board XII - 2025
  • UP Board XII
  • Physics
  • Electromagnetic Wave

What do you mean by the current sensitivity of a moving coil galvanometer? Resistance of a galvanometer is \( 50 \, \Omega \) and for full-scale deflection, the current is \( 0.05 \, \mathrm{A} \). What would be the required length of a wire to convert it into an ammeter of 5 A range? (Area of cross-section of wire = \( 2.7 \times 10^{-6} \, \mathrm{m^2} \), specific resistance of the wire material = \( 5.0 \times 10^{-7} \, \Omega \cdot \mathrm{m} \))

  • UP Board XII - 2024
  • UP Board XII
  • Physics
  • Electromagnetic Wave

The amplitude of the magnetic field of an electromagnetic wave in vacuum is \(B_0 = 510 \, \text{nT}\). What is the amplitude of the electric field of the wave? 
 

  • UP Board XII - 2024
  • UP Board XII
  • Physics
  • Electromagnetic Wave
  • Prev
  • 1
  • 2
  • Next