Current and Potential Flashcards
Charge on the body is denoted by the symbol —————. Its SI unit is ——————
q or Q.
Coulomb
1mC= ?
1microC=?
1nC=?
10^-3
10^-6
10^-9
How is the charge on a body determined?
It is determined by the number of electrons in deficit or number of electrons in excess.
The charge on election is —————-
-1.6* 10^-19C
Explain the flow of charges in Conductor and insulator
In a conductor, charges can flow i.e, a conductor has large number of free electrons which can flow throughout the volume.
In a non conductor, charge is static i.e, the charge resides on a point where there is excess or deficit of electrons.
Define Current.
How is it measured
What is its SI unit
Current is defined as Rate of Flow of charge
It is measured using Ammeter
Ampere.
Define 1 Ampere
Current which flows in a conductor when 1 coulomb of charge passes through it in 1 sec.
what is the Relation between current and electrons
I=ne/t
Current is scalar quantity. True or False
True
Define Potential
Amount of work done per unit charge in bringing a positive test charge from infinity to that point
Potential is a vector quantity. True or False
False
Which of the following formula is correct?
a) V=t/W
b)W=v/t
c) V=W/q
d)q=V/W
c)
SI unit of potential
volt(Joule/Coulomb)
Define 1 volt
Potential at a point is 1 volt when 1 joule of work is done in bringing 1 coulomb of charge from infinity to that point.
