Hwo can a voltmeter of resistance 200 ohm and measuring 10 V be used tomeasure a current of 5A ?

Explanation

To solve the problem of how to use a voltmeter with a resistance of 200 ohms and a maximum reading of 10 V to measure a current of 5 A, we can follow these steps:

### Step 1: Calculate the current through the voltmeter
The current through the voltmeter (IV) can be calculated using Ohm's law, which states that \( I = \frac{V}{R} \). Here, the voltmeter has a maximum voltage (V) of 10 V and a resistance (R) of 200 ohms.

\[ I_V = \frac{V}{R} = \frac{10 \, \text{V}}{200 \, \Omega} = 0.05 \, \text{A} \]
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