MCQ
A current carrying loop is placed in a uniform magnetic field in four different orientations$\text{, I,II, III IV}$ arrange them in the decreasing order of potential Energy
$(a)$$(b)$  $(c)$  $(d)$
  • A
    $\text{I > III > II > IV}$
  • B
    $\text{I > II >III > IV}$
  • $\text{I > IV > II > III}$
  • D
    $\text{III > IV > I > II}$

Answer

Correct option: C.
$\text{I > IV > II > III}$
$\text{I > IV > II > III}$

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

A light bulb is placed between two plane mirrors inclined at an angle of 60°. The number of images formed are (a) 6(b) 2(c) 5  (d) 4
       
A candle placed 25 cm from a lens, forms an image on a screen placed 75 cm on the other end of the lens.  The focal length and type of the lens should be(a) + 18.75 cm and convex lens(b) – 18.75 cm and concave lens(c) + 20.25 cm and convex lens(d) – 20.25 cm and concave lens
   
   
A passenger in an aeroplane shall$:$
The magnetic field $B$ with in the solenoid having $n$ turns per metre length and carrying a current of $i$ ampere is given by $4 \pi$
A parallel plate capacitor is charged and the charging battery is then disconnected. If the plates of the capacitor are moved further apart by means of insulating handles, then(a) The charge on the capacitor increases(b) The voltage across the plates decreases(c) The capacitance increases(d) The electrostatic energy stored in the capacitor increases
 
 
 
 
$62.5 \times 10^{18}$ electrons per second are flowing through a wire of area of cross-section $0.1\ m^2$, the value of current flowing will be
Impedance of a circuit of inductance L and resis- tance R is denoted by:
Cathode rays enter into a uniform magnetic field perpendicular to the direction of the field. In the magnetic field their path will be(a) Straight line(b) Circle(c) Parabolic(d) Ellipse
       
The north pole of a magnet is brought near a metallic ring. The direction of the induced current in the ring will be(a) Clockwise(b) Anticlockwise(c) Towards north(d) Towards south
       
Blue colour of sky is due to: