all formulas related to electricity with their proof
Answers
Answer:
1. current = charge / time ( current is the rate of flow of charge across a cross section normal to the direction of flow of current )
2. total charge passed Q = n × e
and current in conductor l = Q /t= ne/ t
3. 1 ampere (A) = 1 coulomb(C)/ 1 second (S) *( this is bcoz as we know that the SI unit of charge is coulomb and SI unit of time is second and so the SI unit of current is coulomb per second which is called ampere)
4. 1 mili ampere ( mA)= 10^-3 ampere (A) and 1 micro ampere = 10^ -6 ampere
5. V = W/ q( the potential difference between two conductors is equal to the work done in transferring a unit positive charge from one conductor to the other conductor)
6. V1 - V2 = W / q
7. resistance of wire(R)= potential difference across the wire (V)/ current flowing in the wire (I)
8. 1 ohm = 1 volt / 1 ampere ( the resistance of a conductor is said to be 1 ohm if a current of 1 ampere flows through it when the potential difference across its ends is 1 volt)
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