Resistance:
Opposition to the flow of electrons is called Resistance.

R = ९l/A
where , ९ - Specific Resistivity
l - Length of a conductor 
A - Area of a conductor

Which means as resistance increases specific resistivity and length increases whereas area decreases and vice versa.

Capacitor: -
Capacitor is an electrical component which stores the electrical energy in an electrical field in an electrical circuit.

V = q/C
where , V- Voltage applied
q- charge flowing in circuit
C- Capacitance of capacitor


Inductor:
Inductor is an electrical component which stores the electrical energy in a magnetic field in an electrical circuit.
Note: Resistor, Inductor and Capacitor are passive elements which consume energy and convert one form energy into the other.