Ohm's Law

Ohm's Law states the relationship between voltage (V), current (I), and resistance (R):

* V = I * R

Solving for Current (I)

To find the current, we can rearrange the formula:

* I = V / R

Calculations

* V = 6 volts

* R = 400 ohms

* I = 6 volts / 400 ohms

* I = 0.015 amperes (or 15 milliamperes)

Answer: The current through the 400 ohm resistor is 0.015 amperes or 15 milliamperes.