Resistance of a milli ammeter is `R_1` of an ammeter is `R_2` of a voltmeter is `R_3` and of a kilovoltmeter is `R_4`. Find the correct order of `R_1, R_2, R_3` and `R_4`.

Explanation

To determine the correct order of resistances \( R_1 \) (milliammeter), \( R_2 \) (ammeter), \( R_3 \) (voltmeter), and \( R_4 \) (kilovoltmeter), we can analyze the function and construction of each device.

### Step 1: Analyze the milliammeter and ammeter
- A milliammeter is designed to measure small currents and has a relatively low resistance \( R_1 \).
- An ammeter, which measures larger currents, typically has a slightly higher resistance \( R_2 \) than a milliammeter because it is designed to handle larger current ranges.

**Relation:**
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