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what is resistance and what it is formula

Sagot :

Resistance is the ability of a material to resist the flow of current.
To get resistance; Voltage / Current (that is- voltage over current).
Plus, the unit for Resistance is Ohms or Ω (Omega in Greek).

V= (I) (R)
R= V / I
I= V / R

where V= voltage, R= resistance and I= current