Analysis of Current in 1kohm Resistor
The current flowing through the 1kohm resistor can be determined using Ohm's Law, which states that the current (I) flowing through a resistor is equal to the voltage (V) across the resistor divided by the resistance (R) of the resistor.

Given Values:
- Voltage across the 1kohm resistor = 5V
- Resistance of the 1kohm resistor = 1kohm = 1000 ohms

Calculation:
Using Ohm's Law: I = V / R
Substitute the given values: I = 5V / 1000 ohms
I = 0.005A
Therefore, the current flowing through the 1kohm resistor is 0.005A or 5mA.

Explanation:
When a voltage is applied across a resistor, a current flows through it in direct proportion to the voltage and inversely proportional to the resistance. In this circuit, the 1kohm resistor has a voltage of 5V across it, which results in a current of 5mA flowing through it. This current is determined by the resistance of the resistor and the applied voltage, as per Ohm's Law.
In summary, the current flowing through the 1kohm resistor is 5mA, calculated using Ohm's Law based on the given voltage and resistance values.