Physics Past Questions and Answers

In electrolysis experiment, a cathode of mass \(5 g\) is found to weight \(5.019\) after a current of \(5 A\) flows for 50 sec.
what is the electrochemical equivalent of the deposited substance?

A capacitor and a resistor are connected in series with eachh other and if hegligible internal resistance.
The potential difference across the terminals of the capacitor.

A weight of 1000 grams hangs from a lever \(20 cm\) to the right of the fulcrum. At the left is 500 gram weight \(20 cm\) from the fulcrum, and a 200 gram weight \(x\) cmaway from the fulcrum. What is the value of \(x\) that will make the lever balanced?

A magnetic needle is suspended firstat earth's north magnetic pole and at a point on the magnetic equator, the respective angles between the needle and the horizontal are ____________

Which of the following is NOT a veater quality?