One-meter-long copper rod is moving with speed 20 m/sec in the magnetic field of strength 0.6 tesla what is the value of induced emf?
Answer: 12 V
Explanation
The induced electromotive force (emf) (ε) in a moving conductor in a magnetic field can be calculated using the formula:
ε=B⋅L⋅v
Where:
- B is the magnetic field strength (in teslas),
- L is the length of the conductor (in meters),
- v is the velocity of the conductor (in meters per second).
Given:
- B=0.6T
- L=1m
- v=20m/s
Substituting the values into the formula:
ε=0.6T⋅1m⋅20m/s=12V
Thus, the value of the induced emf is 12 V.
This question appeared in
Past Papers (1 times)
MDCAT Past Papers and Syllabus (1 times)
This question appeared in
Subjects (2 times)
EVERYDAY SCIENCE (2 times)
Related MCQs
- Current flowing in a conducter will set up a magnetic field around the conductor. The strength of the magnetic field determined by?
- A straight wire of length 0.20 m moves at a steady speed of 3.0 ms^-1 at night angles to the magnetic field of flux density 0.10 T. The EMF induced across ends of wire is?
- A positive change moving with a constant velocity v enters a region of a uniform magnetic field pointing out the page. What is the direction of the magnetic force on the charge?
- What is the magnetic field strength at a distance of 2 cm from a wire carrying a current of 5 A?
- Magnetic field used in a moving coil galvanometer is _____?
- Force on a moving charge in a uniform magnetic field depends upon?
- One electron is moving in an electric and magnetic field. It will gain energy from ______?
- Force acting on a charge moving in a magnetic field will not dependupon _____?
- A square loop of wire lies in the plane of the page. A decreasing magnetic field is directed into page. The induced current in the loop is ____?
- Four particles independently move at the same speed in a direction perpendicular to the same magnetic field. Which particle is deflected the most ?
