how many electrons pass through a loop in 2 minutes if the current is 200 ma
Answers
Answer:
n = 15 x10^19 Electrons
Explanation:
We know that current is defined as the rate of flow of charge or electrons. It can be mathematically written as;
Current = Charge / time
Q = I x t
As per given information
Q = 0.2 x ( 2 x 60 )
Q = 24 columnb
Now we also know that
Q = Ne,
Where n is the number of electrons and E is the charge on one electron
N = Q/ E
n=24 / 1.6*10^(-19)
n=15 x10^19 Electrons
15 × 10¹⁹ electrons pass through a loop in 2 minutes if the current is 200 mA.
Explanation:
The current flowing through a conductor is given by the formula:
I = q/t
Where,
q = Charges
t = Time
Now, the charge flowing through loop for 120 seconds is:
q = I × t
On substituting the values, we get,
q = 0.2 × 120
∴ q = 24 C
Thus, the number of electrons are given by the formula:
n = q/e
Where,
e = Charge of electrons = 1.6 × 10⁻¹⁹ C
On substituting the values, we get,
n = 24/(1.6 × 10⁻¹⁹)
∴ n = 15 × 10¹⁹