Question

Take a look at the figure. Use the formula I = E/R to calculate the current in the circuit shown.

Answer 1

We are tasked to solve for the current in the given circuit diagram and in order for us to solve this problem, we need to apply and use Ohm's Law theorem which is also given in the problem I = V/R where "I" represents the current, the "V" represents the voltage and "R" represents the resistance of the circuit. The solution is shown below:
V = 5 volts 
R = 20 ohms
Since we are given with voltage and resistance value, we can now proceed in solving for the current value:
I = V/R, substitute values
I = 5/20, perform division
I = 0.25 amperes

The answer is 0.25 amperes or 250 milliamperes.