Real values of masses(msi)g
Real values of di(cm)
Real values of ti(secs)
Real values of mli(g)
the two precautions are:
1.avoid parallax error in reading clock/weight balance
2. I ensue repeated readings are taken to avoid random error
3. I avoid draught or wind when performing the experiment
the forces are weight, upthrust and viscous force / drag or liquid friction
the amplitude of oscillation of the loaded test tube decreases with time because of the viscous drag(force) which opposes the motion.
i)i would ensure that the terminal are well tightened to avoid partial contact
ii)i would obey the connect connection of positive to positive to negative to negative when connecting to circuit
The resistance of a metallic conductor increases with increase in temperature of metallic conductor increases the velocity of free electrons increases which cause resistance in the path of free electrons
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