Peerless Current Electricity Formula Sheet
A current is maintained in a conductor of cross-section 10-4 m2.
Current electricity formula sheet. If the number density of free electrons be 9 x 1028 m-3and the drift velocity of free electrons be 694 x10 9 ms calculate the current in the conductor. Resistance R 70 Ω. I 31428 A.
Important formulas on Electricity Current - The rate of flow of charges Q through a conductor is called and is given by Current - ChargeTime or t Qt where the SI unit of current is ampere A 1 Ampere 1 coulomb1 Second. Electric current I q t. These list of formula booklet physics of class 12 chapter Current Electricity is useful and highly recommended for quick revision and final recap of chapter Current Electricity.
M τ Relationship between current and drift velocity. D Relationship between current density and drift velocity. This flow of charge is called electric current.
Fe k rˆ r2 r V k coulombs constant 1 16. The unit of electric current is Coulomb per second and we give specific name Ampere A. Voltage V 220 V.
Current I 05 A. Httpsvdntin3fLy7Playlist LinksPhysics Formula Cheat Sheet. Drift velocity of electrons is given by v eE.
Electric Current I The rate of flow of charge through any cross-section of a wire is called electric current flowing through it. E x I x EFF x PF x 173. An electrical lamp lights for 4 hours and draws a current of 05 A.