The purpose of this experiment is to find the thermal capacity C
of the resistor. You need to fill out the following table during the experiment. In the table, T i
is the initial reading of the thermometer for each trial while T max
is the maximum reading. ΔP is the voltage applied on the capacitor which can be read from the multimeter. The capacitance
(C) of the given capacitor is 1 Farad (F). Repeat same procedures for 3 times and then determine the average value of C
T using equation ½C(ΔP) 2
ΔT where ΔT is the difference of T max
and T i
. When reading the maximum temperature, read at 5 seconds intervals until 5 consecutive readings are the same.
Trial T i
(C˚) ΔP (V)
A test charge of 4 x 10
C is placed in an electric field. The force on it is 0.6 N at
10˚. What is the magnitude and direction of the electric field at the location of the test charge?
The potential difference between two parallel plates is 60 V. The plates are 3 cm apart. What is the magnitude of the electric field between them?
An oil drop weighs 1.9 x 10
N. It is suspended in an electric field of intensity 4 x 10 4 N/C. What is the charge on the oil drop?
A sphere has a potential difference between it and the Earth of 60 V when charged with 3 x 10
C. What is its capacitance?