To determine the current supplied by \( V1 \) in this circuit, we need to consider the principle of current conservation at a junction. According to Kirchhoff's current law, the total current entering a junction must equal the total current leaving the junction.
In this case, we have the following currents:
- Current through \( R1 \): \( I_{R1} = 5 , \text{mA} \) (downward)
- Current through \( LED1 \): \( I_{LED} = 3 , \text{mA} \) (downward)
If the total current supplied by \( V1 \) is \( I_{V1} \), we can apply Kirchhoff's current law at the junction:
\[ I_{V1} = I_{R1} + I_{LED} \]
Substituting the given values:
\[ I_{V1} = 5 , \text{mA} + 3 , \text{mA} = 8 , \text{mA} \]
Therefore, the value of current that is being supplied by \( V1 \) is \( 8 , \text{mA} \).
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