Exercise 3:
Laws of voltage and current (12 pts)
The adjacent diagram is a portion of an elect...
Physics, 11.01.2021 18:00 avriannamcclenton1
Exercise 3:
Laws of voltage and current (12 pts)
The adjacent diagram is a portion of an electric circuit:
Given I=10 A, L =5 A, L = 3 A, la = 1 A, and is = 3A.
Li, L2, ..., and Ls are lamps.
The points A and B are connected to a battery.
1
itoa
is
A. Motion of the electrons:
a) Specify whether B is connected to the
positive or to the negative pole of the battery.
b) Calculate the charge and the number of electrons
that enter into junction A
during 2 minutes
16
C 3A
B
D
Lo
IR
B. Grouping of lamps:
a) Name the two lamps which are connected in series.
b) Name the two lamps which are connected in parallel. Are these two lamps identical? why?
CJunction ule:
al Specify the value of the current Is that flows out of the junction B.
b) Calculate the value of the current 12.
c) Determine the direction and the value of the current 16
d) Deduce the value of the current 17.
D. Laws of voltages:
Given: UA= 12 V, UE= -2 V, UED = 1 V and Uac=5.5 V.
a) Calculate UAE, UAD, Ucend Up
b) Calculate UCD. Specify whether the lamps L3 and Ls are identical.
o) Draw the branch BE and show the connections of an oscilloscope so that it displays Urg. ground to
in) The luminous line, initially at Y=0, is displaced downward. Justify.
iii) Calculate the number of division y by which the luminous line is displaced. (given Sv = 1V/div)
phrase A
Answers: 3
Another question on Physics
Physics, 22.06.2019 12:20
Electric field of the earth. the earth has a net electric charge that causes a field at points near its surface equal to 150 n> c and directed in toward the center of the earth. (a) what magnitude and sign of charge would a 60-kg human have to acquire to overcome his or her weight by the force exerted by the earth’s electric field? (b) what would be the force of repulsion between two people each with the charge calculated in part (a) and separated by a distance of 100 m? is use of the earth’s electric field a feasible means of flight? why or why not?
Answers: 2
Physics, 22.06.2019 15:40
Apotter's wheel moves uniformly from rest to an angular speed of 0.20 rev/s in 32.0 s. (a) find its angular acceleration in radians per second per second. rad/s2 (b) would doubling the angular acceleration during the given period have doubled final angular speed?
Answers: 1
Physics, 22.06.2019 16:00
In which of the following is positive work done by a person on a suitcase
Answers: 1
Physics, 23.06.2019 12:00
Which wave would cause destructive interference at every point of the wavelength and completely cancel out the wave?
Answers: 2
You know the right answer?
Questions
Social Studies, 25.11.2019 20:31
Geography, 25.11.2019 20:31
Mathematics, 25.11.2019 20:31
Biology, 25.11.2019 20:31
Computers and Technology, 25.11.2019 20:31
Biology, 25.11.2019 20:31
English, 25.11.2019 20:31
History, 25.11.2019 20:31
History, 25.11.2019 20:31
Mathematics, 25.11.2019 20:31
Chemistry, 25.11.2019 20:31
History, 25.11.2019 20:31
Mathematics, 25.11.2019 20:31
