Untie the wire of the sonometer from its peg and find its mass in a physical balance. List of experiments conducted in physics lab during inspire camp. Suppose the incoming current i divides into i 1 through ac and i 2 through. Frequency of ac mains using sonometer experiment pdf an a. Power amplifier wci6550 or ci6565 computer interface 4. Several tasks using the setup are considered, which help the students to better understand. Instruction manual and experiment guide for the pasco scientific. Frequency of ac alternating current using sonometer. Apparatus a sonometer with soft iron wire, a set of eight tuning forks. This document is highly rated by class 12 students and has been viewed 2717 times. Using the sonometer and the wa96 driverdetector coils. It consists of the frequency is calculated using the.
Aim to find the frequency of the ac mains with a sonometer. A sonometer is a long box with a hook and pulley at opposite ends. A set of audio files with selected frequencies is first created and stored on the. Hence find the mass per unit length, m for the wire. E for a given power input the temperature rise is independent of the flow rate. Dependence of the fundamental frequency on tension use the above equations to derive a relationship between the frequency of the fundamental mode n1 and l, and t. Download free sample and get upto 51% off on mrprental. To determine the frequency of alternating current using a sonometer. Basically the frequency f of a stretched string depends upon the length of the string l, the tension t, and the mass per unit length m. To determine the frequency of ac mains using a sonometer. How to measure the ac source frequency using sonometer and.
Using a wire length of approximately 30cm measure the vibrational frequency of the wire for a range of tensions. By increasing the tension on wire, repeat the experiment for 3 or 4 different tensions. If the vibrating length and tension in the string remain constant then, the frequency of transverse vibration of a stretched string is inversely proportional to the square root of its mass per unit length. Sonometer with nonmagnetic wire brass wire stretched over it, stepdown transformer of 68 volts, horse shoe magnet, meter scale, screw gauge and 250gm weights. Apparatus requireda sonometer, the given tuning fork a. Laws of transverse vibration of string using a sonometer duration. Connect the primary of the step down transformer to a. To determine the frequency of ac by using sonometer. Here l is the length of the vibrating string, t is the tension in the wire and m is its mass per unit. Link of pdf of practical file of this experiment link of pdf of practical file of g by bar pendulum experiment. It is in the form of a hollow wooden rectangular box. In this project, i explain how to measure the ac mains frequency using sonometer and electromagnet in the lab. During the experiment, the cylinder is rotated through a predetermined number of. C sonometer is an apparatus by which the transverse vibrations of strings can be studied.
Experiment 7 to find the frequency of the ac mains with a sonometer. A simple experiment demonstrating the excitement of a standing wave in a metal string is presented here. This paper describes a simple experiment that students can do at home to determine the speed of sound in air. To determine resistance per cm of a given wire by plotting a graph for potential difference versus current ohms law. Determine the frequency of ac main using sonometer. To find the frequency of the ac mains with a sonometer. Weights are hung on the box, and alternating currents from the ac main is put. On the wooden rectangular box there are two bridges and a pulley at one end.
821 1149 1602 18 605 990 1483 1039 706 979 778 313 380 490 1411 908 180 957 902 285 64 379 1259 233 992 1481 1227 858 305 496 999 777 1231 589 94 470 225 1401 895