An electric lamp of `100 Omega`, a toaster of resistance `50 Omega` and a water filter of resistance `500 Omega` are connected in parallel to a `220 V` source. What is the resistance of an electric iron connected to the same source that takes as much current as all three appliances and what is the current through it ?

Explanation

To solve the problem, we need to find the equivalent resistance of the three appliances connected in parallel and then determine the resistance of the electric iron that draws the same current as the total current through the three appliances. Finally, we will calculate the current through the electric iron.

### Step-by-Step Solution:

1. **Identify the Resistances**:
- Electric lamp, \( R_1 = 100 \, \Omega \)
- Toaster, \( R_2 = 50 \, \Omega \)
- Water filter, \( R_3 = 500 \, \Omega \)
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