Answer: 30Ω
Explanation:
Given that,
Electrical potential (V) = 120V
Current drawn (I) = 4A
Effective resistance of your computer (R) = ?
Recall that voltage is the product of current and resistance
i.e V = I x R
120V = 4A x R
R = 120V / 4A
R = 30Ω (The unit of resistance is ohms, and its symbol is Ω)
Thus, the effective resistance of your computer is 30Ω