Bilad Alrafidain University College1 stageSuhject. Fundanental clectrical mgDate 23/3/2022Time: IhrsQ/A- What is the relative increase or decrease in conductivity of a conductor if theA arca is reduced by 30% and the length is increased by 40%? The resistivity is fixed.A,B- The resistance of a silver wire is 0.04 kN at-30 C, what its resistance at-2 C?Q2/A- For the circuit of Fig.1:R.Rea. Find Rr.Rb. Find I.4060c. Find Vi and V3.20 VA= Ri+R2%-DR RFig.1B- Find power delivered to the de motor has operating voltage 120V and consume6 mA?P-I'UQ3/A- Find Vi and V2 for the network of Fig. 2.15 V25 V2.20 VFig.2B- Determine the energy expended to move charge of 50 nc through a potentialdifference of 9V?4)Good LuckLecturer: Mohammed B. Jumaa

Resistors, inductors and capacitors form an integral part of any electrical circuit. A source,…

Q/A- What is the relative increase or decrease in conductivity of a conductor if the arca is reduced by 30% and the length is increased by 40%? The resistivity is fixed. 9,9 B- The resistance of a silver wire is 0.04 kN at-30 C, what its resistance at-2 C? IT

Q/A- What is the relative increase or decrease in conductivity of a conductor if the arca is reduced by 30% and the length is increased by 40%? The resistivity is fixed. 9,9 B- The resistance of a silver wire is 0.04 kN at-30 C, what its resistance at-2 C? IT

Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)

10th Edition

ISBN:9781337399128

Author:Russell E. Smith

Publisher:Russell E. Smith

Chapter12: Electronic Control Devices

Section: Chapter Questions

Problem 14RQ

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Capacitor

The capacitor is an element used to store electrical energy in the electrical field. A capacitor is a form of passive energy.

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Bilad Alrafidain University College
1 stage
Suhject. Fundanental clectrical mg
Date 23/3/2022
Time: Ihrs
Q/A- What is the relative increase or decrease in conductivity of a conductor if the
A arca is reduced by 30% and the length is increased by 40%? The resistivity is fixed.
A,
B- The resistance of a silver wire is 0.04 kN at-30 C, what its resistance at-2 C?
Q2/A- For the circuit of Fig.1:
R.
Re
a. Find Rr.
R
b. Find I.
40
60
c. Find Vi and V3.
20 V
A= Ri+R2
%-D
R R
Fig.1
B- Find power delivered to the de motor has operating voltage 120V and consume
6 mA?
P-I'U
Q3/A- Find Vi and V2 for the network of Fig. 2.
15 V
25 V
2.
20 V
Fig.2
B- Determine the energy expended to move charge of 50 nc through a potential
difference of 9V?
4)
Good Luck
Lecturer: Mohammed B. Jumaa

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