2022 NECO TIMETABLE

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# JAMB 2021: Yearly Repeated Top JAMB Physics Formulas You Must Know

After a thorough studies, I was able to find out the most repeated jamb physics formulas.

1. WAVELENGHT

Y = A sin (2πx/lambda – 2πft)

2. RELATIVE HUMIDITY

Sup at dew point/Sup at temperature

Sup = standard vapour pressure

3. LENSE FORMULA

I/v + I/u + I/f

4. INTERNAL RESISTANCE

E = I(R + r)

Power supply = I²v

Power dissipated = I² R

In which 1000w = 1kw

5. Power

P = m×g×h/time

6. COEFFICIENT OF STATIC FRICTION

N = f/R (mg)

7. VELOCITY RATIO

V r = r/sin ø

8. HEAT CAPACITANCE

I v t = m c Ø

I v = in wats,m= mass,T= time,c = heat capacity,ø= heat

9. REFRACTIVE INDEX

n = real depth/original depth

10. ENERGY STORED IN CAPACITOR

½ Qv

11. DIELECTRIC CONSTANT

Dielectric in air/dielectric in medium

12. LINEAR EXPANSIVITY

Le = l2–l1/l1(Q2 – Q1)

13. CENTRIPETAL FORCE

F= mv²/v

14. ELECTRO MOTIVE FORCE

Emf = work/change

15. RESISTANCE

R= v²/p

Where R= Resistance,p= power, v= voltage

16. POTENTIAL AT A POINT

q/4πor²

17. HALF LIFE

π\lambda (decay constant)

18. ENERGY STORED IN INDUCTOR

½ I²c

19. WEIGHT LOSS

M(g–a)

20. WORK DONE IN SPRING

½ fe

21. SPEED

Distance/time

22. PRESSURE IN FLUIDS

P=Ghg + A p

G=pressure

H=Dept/height

g=10(constant)

Ap= atmospheric pressure.