NEET Exam > NEET Videos > Physics Class 12 > Figure of Merit of a Galvanometer
Figure of Merit of a Galvanometer Video Lecture | Physics Class 12 - NEET
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FAQs on Figure of Merit of a Galvanometer Video Lecture - Physics Class 12 - NEET
| 1. What is the figure of merit of a galvanometer? |  |
Ans. The figure of merit of a galvanometer is a measure of its sensitivity and is defined as the current required to produce a unit deflection on the galvanometer scale.
| 2. How is the figure of merit of a galvanometer calculated? | |
Ans. The figure of merit of a galvanometer can be calculated by dividing the full-scale current of the galvanometer by the angular deflection corresponding to that current. It is typically expressed in units of ampere per degree or ampere per radian.
| 3. Why is the figure of merit important in galvanometers? | |
Ans. The figure of merit is important in galvanometers as it provides an indication of the sensitivity of the instrument. A higher figure of merit implies that the galvanometer can detect smaller currents, making it more sensitive.
| 4. How does the figure of merit affect the accuracy of a galvanometer? | |
Ans. The figure of merit directly affects the accuracy of a galvanometer. A higher figure of merit means that smaller currents can be detected with higher precision, leading to a more accurate measurement of the current flowing through the galvanometer.
| 5. Can the figure of merit of a galvanometer be increased? | |
Ans. Yes, the figure of merit of a galvanometer can be increased by reducing the resistance of the galvanometer coil. This reduces the internal resistance of the galvanometer, allowing a larger current to flow for a given voltage and increasing the sensitivity of the instrument.
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Nov 24, 2024 Last updated |
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