1. What is Voltage Across Galvanometer?

Voltage across galvanometer refers to the potential drop between the ends of the galvanometer that occurs when a current flows through it. It is a crucial measurement in electrical instrumentation and circuit analysis.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( V \) — Voltage across galvanometer (Volts)
• \( \theta_d \) — Deflection angle (Radians)
• \( S_v \) — Voltage sensitivity (V⁻¹)

Explanation: The formula calculates the voltage across the galvanometer by dividing the deflection angle by the voltage sensitivity of the instrument.

3. Importance of Voltage Calculation

Details: Accurate voltage calculation is essential for proper calibration of galvanometers, circuit analysis, and ensuring precise measurements in electrical experiments and instrumentation.

4. Using the Calculator

Tips: Enter deflection angle in radians and voltage sensitivity in V⁻¹. Both values must be positive numbers greater than zero for accurate calculation.

5. Frequently Asked Questions (FAQ)

Q1: What is a galvanometer?
A: A galvanometer is an instrument used for detecting and measuring small electric currents through mechanical deflection of a pointer.

Q2: What is voltage sensitivity?
A: Voltage sensitivity is defined as the deflection produced in the galvanometer when a unit voltage is applied across its terminals.

Q3: Why is deflection angle measured in radians?
A: Radians provide a natural unit for angular measurements in mathematical calculations involving trigonometric functions and circular motion.

Q4: Can this calculator be used for AC measurements?
A: This calculator is primarily designed for DC measurements. For AC measurements, additional factors like frequency and phase need to be considered.

Q5: What are typical voltage sensitivity values?
A: Voltage sensitivity values vary depending on the galvanometer design, but typically range from 0.001 to 1.0 V⁻¹ for most laboratory instruments.