Which of the Following Can Produce Magnetic Fields

The electric current produces magnetic field only in presence of an iron core. The speed of electron if the electric field is removed and.

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The path of electron remains undeviating.

. MCQ from Number 51 100 Answer key. Using a temporary magnet. D Charge distributed on a circular plot.

For an electric charge to produce a magnetic field which of the following must be. Magnetic Field Electric field. None of the above C.

0 1 0 4 V m both acting simultaneously. Correct option is B Electric charges at rest produce electric field whereas moving charges produce magnetic field because moving charges produce electric. An electric current is being sent through a wire The iron core was placed next to an existing magnet.

Following is the list of multiple choice questions in this brand new series. This magnetic field can be visualized as a pattern of circular field lines circling a wire. The magnetic force acts only on moving electric charges.

All of the following elements produce magnetic fields except for A. C Two Parallel Plates. An electron beam passes through a magnetic field of 2 1 0 3 W b m 2 and an electric field of 1.

Answer choices A battery is placed next to the iron core. Question 16 30 seconds. MCQ from Number 1 50 Answer key.

All of the following elements produce magnetic fields except for A. A constant electric current produces an unchanging magnetic field and a changing electric current produces a changing magnetic field. The charge must be in motion.

MCQ in Electricity and Magnetism Fundamentals. Each segment of current produces a magnetic field like that of a long straight wire and the total field of any shape current is. Permanent magnets are the most common sources of the magnetic field.

The charge must be at rest. Answer 1 of 2. Iron filings are sprinkled around the iron core.

A A time-varying electric field will produce a magnetic field. Only large currents produce a magnetic field. 1 A moving charge or current creates a magnetic field in the surrounding space in addition to E.

An electric current produces a magnetic field. Which of the following equations accurately describe a magnetic field that can produce a constantly increasing emf in a loop perpendicular to its direction Justify your answer for each of the proposed magnetic fields. How are magnetic fields produced in an electromagnet.

The earths magnetic field is confined within the core of the earth. 2 The electric field exerts a force F E q E on any other charges in presence of that field. Using a permanent magnet O d.

Using a permanent magnet or electric current O e. C Two parallel plates. B A wire is connected to a battery but a switch is open so there is no current flow.

Physics questions and answers. Describe the magnetic field of an electrical current. MCQ from Number 101 150 Answer key.

Eddy currents are often undesirable as they lead to. B Electric and magnetic fields can be treated independently only if they vary in time. The magnetic field produced by permanent magnets is not different from the one.

The charge must be negative. 1 A distribution of electric charge at rest creates an electric field E in the surrounding space. The charge must be positive.

Magnetic fields are unreliable for use in navigation. Flip side of alternating fields. Answer all parts of the following question.

The electric current produces magnetic field only in presence of a coil. This problem has been solved. Magnets and magnetic fields were only just discovered in the last 500 years.

D A time-varying magnetic field will produce an electric field. The following are the three sources of magnetic fields. Which of the following can produce a magnetic field.

The physical law that states that the magnetic field around an electric current is proportional to the current. The electric current always produces a magnetic field. A A wire is not connected to a battery and carries no current.

The problem with alternating fields could be that they lead to some eddy currents in nearby conductors. Which of the following statements is true about magnetic fields. C Time-varying electric and magnetic fields can propagate through space only if there is no matter in their path.

The earths magnetic field protects the surface from strong electrical currents. A B t 3 t 5 mT b B t 3 t2 2 mT c B t 3 cos 𝜔t 10 mT d B t 3 sin 2𝜔t 25 mT e B t 3. Which of the following situations will produce a magnetic field.

Which of the following produces uniform electric field. An alternating current produces an alternating magnetic field.

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