Physics Exam 2/28/2025 ⏳120’
Open questions (3 points each)
1) Definition of the work of a force.
2) What is the Carnot cycle?
Problems (4 points each)
1) A particle that is negatively charged 1,6 × 10!"# 𝐶 and has a
mass of 9,11 × 10!$" 𝑘𝑔 is thrown into a capacitor positioned
equidistant from the capacitor plates at a speed of 100 m/s
and strikes the positively charged plate at a distance of 20 cm.
The distance between the two plates is 10 cm. Calculate the
diFerence in electrical potential (dep) and the kinetic energy
at the moment of impact. −
K=
𝑑#
2
d
𝑑#
2
+
20 cm
2) Given an electrical field E=3i-4j, calculate the flow.
Considering that the cube side length is l=2,2 cm, calculate
the flow through the cube.
z
Flow:
E
k
i j y
l = 2,2 cm
x
Open questions (3 points each)
1) Definition of the work of a force.
2) What is the Carnot cycle?
Problems (4 points each)
1) A particle that is negatively charged 1,6 × 10!"# 𝐶 and has a
mass of 9,11 × 10!$" 𝑘𝑔 is thrown into a capacitor positioned
equidistant from the capacitor plates at a speed of 100 m/s
and strikes the positively charged plate at a distance of 20 cm.
The distance between the two plates is 10 cm. Calculate the
diFerence in electrical potential (dep) and the kinetic energy
at the moment of impact. −
K=
𝑑#
2
d
𝑑#
2
+
20 cm
2) Given an electrical field E=3i-4j, calculate the flow.
Considering that the cube side length is l=2,2 cm, calculate
the flow through the cube.
z
Flow:
E
k
i j y
l = 2,2 cm
x
