MCQ
Earth's magnetic field always has a horizontal component except at or Horizontal component of earth's magnetic field remains zero at
 
  • A
    Equator
  • Magnetic poles
  • C
    A latitude of $60^\circ$
  • D
    An altitude of $60^\circ$

Answer

Correct option: B.
Magnetic poles
Magnetic poles

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 resistor of resistance R is connected to an ideal battery. If the value of R is decreased, the power dissipated in the resistor will:
A lens is placed between a source of light and a wall. It forms images of area $A_1$ and $A_2$ on the wall for its two different positions. The area of the source or light is
Which of the following properties show that light is a transverse wave?
The correct symbol for zener diode is
Assertion  : If the temperature of a semiconductor is increased then it's resistance decreases.
Reason      : The energy gap between conduction band and valence band is very small(a) If both assertion and reason are true and the reason is the correct explanation of the assertion.(b) If both assertion and reason are true but reason is not the correct explanation of the assertion.(c) If assertion is true but reason is false.(d) If the assertion and reason both are false.
 
 
 
 
A parallel plate capacitor is connected to a battery. The plates are pulled apart with a uniform speed. If $x$ is the separation between the plates, the time rate of change of electrostatic energy of capacitor is proportional to
By corpuscular theory of light, the phenomenon which can be explained is(a) Refraction(b) Interference(c) Diffraction(d) Polarisation
       
When a charged particle moves through a magnetic field, the quantity which is not affected in the magnetic field is:
An electron and a proton enter a magnetic field perpendicularly. Both have same kinetic energy. Which of the following is true(a) Trajectory of electron is less curved(b) Trajectory of proton is less curved(c) Both trajectories are equally curved(d) Both move on straight-line path
   
   
Transformers are used:
  1. In DC circuits only.
  2. In AC circuits only.
  3. In both DC and AC circuits.
  4. Neither in DC nor in AC circuits.