TestUstad

If we give a direct current to the transformer's primary coil, then there will be:

Correct answer: A. No emf produced in the secondary coil

  • A. No emf produced in the secondary coil
  • B. More emf in the secondary coil
  • C. Equal emf produced in the secondary coil
  • D. Less emf produced in the secondary coil

Explanation

A direct current will produce no varying magnetic field and therefore, no emf will be generated in the secondary coil.

Written and checked by , contributorLast updated
Report an error

The more specific you are, the faster it gets fixed. A source beats an opinion.

Prefer email? [email protected]

About Electromagnetism

Magnetic flux density and magnetic flux describe the strength of a magnetic field and the field passing through a surface. A charged particle moving through a magnetic field experiences a force perpendicular to its velocity and may follow circular or helical motion, depending on the angle between velocity and field.

Practise Electromagnetism

1,176 free Electromagnetism MCQs from Physics, each with the correct answer and an explanation. Unlimited attempts, no account needed.

Start a free Electromagnetism testAll Electromagnetism MCQs

Discussion

Stuck on an option, or know a faster way to get there? Ask or explain it here.

No comments yet. Be the first to explain this one.

Exams that ask Physics questions like this

Physics is on 16 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.

Lecturer Physics Test Physics80 MCQsSubject Specialist Physics Test Physics80 MCQsNET Physics60 MCQsNUMS Physics40 MCQsDUHS Physics36 MCQsETEA MDCAT Physics36 MCQsKMU Physics36 MCQsMDCAT Physics36 MCQsECAT Physics30 MCQsETEA Engineering Admission Test Physics30 MCQsGIKI Physics30 MCQsNED Physics30 MCQsPIEAS Physics30 MCQsPMD Physics25 MCQsBSN Entry Test Physics20 MCQsPAF Airman Physics15 MCQs

More Electromagnetism questions

The unit of magnetic flux density is the tesla, 'T'. It can also be expressed as:

If a conductor of length 7m is placed in a magnetic field of strength 0.3 T carrying current 1 A, parallel to the field. What will be the force, acting on it, due to this magnetic field?

Which of the following is the unit of mutual inductance?

The horizontal component of Earth magnetic flux density is 1.8 x 10^-6 T. The current in a horizontal cable is 160 A. Calculate the maximum force per unit length?

If a charge of 2C is moving with 5m/s enter at 30° in 3 T, calculate the force experienced by it.

Motional e.m.f induced in a coil is dependent on?