Tag: magnetism and electromagnetism

Quizzes (6) Questions (43)

Questions Related to magnetism and electromagnetism

Multiple choice physics magnetism and electromagnetism electric generator ac generator magnetic effects of electric current

For a dynamo which one of the following statements is correct

  1. It converts electrical energy into light energy

  2. It converts kinetic energy into heat energy

  3. It converts mechanical energy into electrical energy

  4. It converts electrical energy into mechanical energy
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A  dynamo converts mechanical energy into electrical energy according to Faraday's Law of Electromagnetic Induction.


Answer-(C).

Multiple choice physics magnetism and electromagnetism applications of electromagnets transformer transformers

The magnetic resonance imaging is used as a tool of diagnosis to detect the injuries in human body. It is based on the principle that:

  1. Protons in different types of human tissues have specific magnetic field environment

  2. Magnetic field pattern of human body resonates with the externally applied magnetic field

  3. Either $(1)$ or $(2)$

  4. Neither $(1)$ nor $(2)$
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The basic principle of MRI is protons in different types of human tissues have specific magnetic field environment.