Question

Attempt any one (4 marks each)
0.12) Derive an expression for time period of conical pendulum.
0.13) What is thermoelectric effect?
What is the value of the shunt resistance that allows 20% of the main current through
galvanometer of 99 027​

Answer 1

Answer:

Let us consider a conical pendulum consists of a bob of mass 'm' revolving in a horizontal circle with constant speed 'v' at the end of a string of length 'l'. Let the string makes a constant angle 'θ' with the vertical. let 'h' be the depth of the bob below the support.