In a electric circuit ammeter and volotmeter are used to verify ohm's law hwich of the following is true.

Options

A. Ammeter connected in series and voltmeter connected in parellel
B. Voltmerter connected in series and ammeter connected in parallel
C. Both can be connected in parellel
D. Both can be connected in series

Answer

To verify Ohm's law using an ammeter and a voltmeter in an electric circuit, we need to understand how to properly connect these instruments. Here’s a step-by-step solution:

### Step-by-Step Solution:

1. **Understanding Ohm's Law**:
Ohm's law states that the current (I) through a conductor between two points is directly proportional to the voltage (V) across the two points, provided the temperature remains constant. The relationship is given by the formula:
\[ V = I \times R \]
where R is the resistance.

2. **Connecting the Ammeter**:
An ammeter is used to measure the current flowing through the circuit. To measure the current accurately, the ammeter must be connected in series with the circuit. This way, the same current that flows through the circuit also flows through the ammeter.

3. **Connecting the Voltmeter**:
A voltmeter is used to measure the voltage across a component (like a resistor). To measure the voltage drop across a resistor accurately, the voltmeter must be connected in parallel to that resistor. This ensures that the voltmeter measures the potential difference across the resistor without affecting the current in the circuit.

4. **Analyzing the Connections**:
- If the voltmeter is connected in series, it will introduce its own resistance into the circuit, which can alter the current and lead to inaccurate readings.
- If the ammeter is connected in parallel, it will create a short circuit, leading to potentially damaging high currents through the ammeter.

5. **Conclusion**:
To verify Ohm's law correctly:
- The ammeter should be connected in series to measure the current (I).
- The voltmeter should be connected in parallel to measure the voltage (V) across the resistor.

Thus, the correct configuration is:
- **Ammeter in series** and **Voltmeter in parallel**.

### Final Answer:
- The correct statement is: **Ammeter connected in series and voltmeter connected in parallel.**

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