Answer:
n = 4.35 x 10¹⁹
Explanation:
Given that
Voltage V= 12 V
Power rating of headlights = 41.8 W
We know that headlights of the car is connected in parallel connection.
We know that
Power = Current x Voltage
P = V I
[tex]I=\dfrac{41.8}{12}\ A[/tex]
I=3.48 A
Therefore the total current will be
I'= 3.48 + 3.48 A
I = 6.96 A
We know that
Charge = Current x time
q= I' t
q= 6.96 x 1
q= 6.96 C
The charge on electron ,e= 1.6 x 10⁻¹⁹
q= n e
n=Number of electron
[tex]n=\dfrac{q}{e}[/tex]
[tex]n=\dfrac{6.96}{1.6\times 10^{-19}}[/tex]
n = 4.35 x 10¹⁹
