Question
Can we have a single north pole? A single south pole?
✓
Answer
No we cannot have single pole magnet.A magnet always has two poles.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Figure shows the graph of the $x-$coordinate of a particle going along the $X-$axis as a function of time. Find:
→- The average velocity during $0$ to $10s.$
- Instantaneous velocity at $2, 5, 8$ and $12s.$
How do we get energy from the Sun?
Give one example of use of eddy currents.
Assume that the total surface area of a human body is $1.6m^2$ and that it radiates like an ideal radiator. Calculate the amount of energy radiated per second by the body if the body temperature is $37^\circ C.$ Stefan constant $\sigma$ is $6.0 \times 10^{-8}Wm^{-2}K^{-4}.$
→Two bulbs of 25 W and 50 W are joined in series. Which will give more light and why?
What is the form of stored energy in any coil?
Answer the following:
What are the forms of energy into which the electrical energy of the atmosphere is dissipated during a lightning? $($Hint: The earth has an electric field of about $100Vm^{–1}$ at its surface in the downward direction, corresponding to a surface charge density $= –10^{–9}Cm^{–2}$. Due to the slight conductivity of the atmosphere up to about $50\ km \ ($beyond which it is good conductor$),$ about $+ 1800C$ is pumped every second into the earth as a whole. The earth, however, does not get discharged since thunderstorms and lightning occurring continually all over the globe pump an equal amount of negative charge on the earth.$)$
→What are the forms of energy into which the electrical energy of the atmosphere is dissipated during a lightning? $($Hint: The earth has an electric field of about $100Vm^{–1}$ at its surface in the downward direction, corresponding to a surface charge density $= –10^{–9}Cm^{–2}$. Due to the slight conductivity of the atmosphere up to about $50\ km \ ($beyond which it is good conductor$),$ about $+ 1800C$ is pumped every second into the earth as a whole. The earth, however, does not get discharged since thunderstorms and lightning occurring continually all over the globe pump an equal amount of negative charge on the earth.$)$
What is called equipotential surface?Draw the diagram of equipotential surface due point positive charge.
How electromagnetic radio waves are produced?
Find the dimensional formula of $\in_0.$
→