Question Text
Question 6 :
At neutral point the value of magnetic field due to current carrying wire {tex}(B_w){/tex} and the value of magnetic field due to earth {tex}(B_e){/tex} are related as
Question 7 :
As we move away from a current carrying conductor, the spacing between the magnetic lines of force
Question 8 :
In which of the instrument we do not use a horse shoe magnet?
Question 9 :
In the below diagram which polarity does this face of the coil exhibit?<img style='object-fit:contain' src="media_file_MTA5NTAwODMyMzE1MjYwMTk0MTY=.png”/>
Question 11 :
For which of the following substances, resistance decreases with the increase in the temperature?
Question 12 :
A current of 1.6 mA flows through a conductor. If charge on an electron is - 1.6 {tex} \times {/tex} {tex} 10^{-19} {/tex} coulomb, find the number of electrons that will pass each second through the cross section of that conductor.
Question 15 :
An electric appliance has a rating of 1000 W – 200 V. The resistance of the element of electric appliance is :