In a gold leaf electroscope, its stem is made up of
wood
brass
glass
ebonite
At small distance from the earth the colour of lightning is
white
pink
violet
none of these
When conductor are joined in series the resistance
become zero
increases
decreases
no change
SI unit of current
volt
Joule
Ampere
None of these
Which of the following is positively charged?
electron
proton
neutron
Unit of resistance is
ohm
mho
Volt
When length of wire increases resistance,
The mass of an electron is nearly ___ times the mass of proton
