Answer:
0.0436 A
Explanation:
Current: This can be defined as the rate of flow of electric charge in a circuit. The S.I unit of current is Ampere (A).
The expression of current is given as
P = I²R
Where P = power, I = current, R = Resistance.
Make I the subject of the equation,
I = √(P/R)...................... Equation 1
Given: P = 0.25 W, R = 120 Ω
Substitute into equation 1
I = √(0.25/120)
I = √(0.00208)
I = 0.0456 A.
Hence the current that can safely pass through the resistor = 0.0436 A
