K.C.S.E Physics Q & A - MODEL 2015PP1QN16

K.C.S.E Physics Q & A - MODEL 2015PP1QN16

​(a) Figure 10 shows an incomplete set up that can be used in an experiment to determine the specific heat capacity of a solid of mass m by electrical method.

​(i)complete the diagram by inserting the missing components for the experiment to work. 
(ii)Other than temperature, state three measurements that should be taken. 
(iii) The final temperature was recorded as O. Write an expression that can be used to determine the specific heat capacity of the solid. 
(b) State three ways of increasing the sensitivity of a liquid-in-glass thermometer

answers

​(a) (i) ammeter in series
voltmeter in parallel
(ii) ammeter reading (current) 
- voltmeter reading (voltage) 
-time 

​(b) reduce the diameter of the bore
use a thin walled bulb 
use a liquid with a high expansivity