MCQ
From Maxwell’s hypothesis, a charging electric field gives rise to:
  • A
    an electric field.
  • B
    an induced emf.
  • C
    a magnetic field.
  • D
    a magnetic dipole.

Answer

  1. a magnetic field.

Explanation:

A charging electric field gives rise to a magnetic field.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

An electric field is applied to a semiconductor. Let the number of charge carriers be n and the average drift speed be v. If the temperature is increased,

Which of the following statements are true about the magnetic susceptibility   of paramagnetic substance

(a) Value of  is inversely proportional to the absolute temperature of the sample

(b)  is positive at all temperature

(c)  is negative at all temperature

(d)

Which statement is correct for a zone plate and a lens

(a) Zone plate has multi focii whereas lens has one

(b) Zone plate has one focus whereas lens has multiple focii

(c) Both are correct

(d) Zone plate has one focus whereas a lens has infinite

At two places A and B using vibration magnetometer, a magnet vibrates in a horizontal plane and its respective periodic time are 2 sec and 3 sec and at these places the earth's horizontal components are HA and HB respectively. Then the ratio between HA  and HB will be

(a) 9 : 4

(b) 3 : 2

(c) 4 : 9    

(d) 2 : 3

The focal length of a lens of refractive index $\mu$ is f. If the lens is immersed in a liquid of refractive index $\mu$ then the focal length of lens is:

A current of 10 ampere is flowing in a wire of length 1.5 m. A force of 15 N acts on it when it is placed in a uniform magnetic field of 2 tesla. The angle between the magnetic field and the direction of the current is

(a) 30 °

(b) 45 °

(c) 60 °

(d) 90 °

The energy of a photon of light with wavelength 5000 Å is approximately 2.5 eV. This way the energy of an X-ray photon with wavelength 1Å would be

(a) 2.5/5000 eV

(b)  

(c) 2.5 × 5000 eV  

(d)  

A problem of practical interest is to make a beam of electrons turn at 90° corner. This can be done with the parallel plates shown in figure. An electron with kinetic energy 8.0 × 10-17J enters through a small hole in the bottom plate. The strength of electric field that is needed if the electron is to emerge from an exit hole 1.0cm away from the entrance hole, traveling at right angles to its original direction is _______ ×105N/ C.

+ 2C and +6C two charges are repelling each other with a force of 12N.  If each charge is given  -2C of charge, then the value of the force will be

(a) 4N  (Attractive)

(b) 4N  (Repulsive)

(c) 8N (Repulsive)

(d) Zero

Consider the circuit shown in the figure. The current   is equal to          

(a) 5 amp

(b) 3 amp

(c) -3 amp

(d) -5/6 amp