What is the electric current produced when a voltage of 4 V is applied to a circuit with a resistance of 88 Omega?

$i = \frac{1}{22}$ amperes.
$\text{Resistance" = "Voltage"/"Current}$. In this case:
$88 \Omega = \frac{4 \text{V}}{i} \to i = \frac{4}{88} = \frac{1}{22}$ Amperes .