QI A) A 70 W bulb is on for one hour. Find the energy converted in 1. watthours 2. watt seconds 3. joules 4. kilowatt-hours B) The potential difference between two points in an electric circuit is 25 V. If 0.4 J of energy were dissipated in a period of 6 ms, what would the current be between the two points?

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Note : Answer all questions
QI A) A 70 W bulb is on for one hour. Find the energy converted in
1. watthours
2. watt seconds
3. joules
4. kilowatt-hours
B) The potential difference between two points in an electric circuit is 25 V. If 0.4 J of
energy were dissipated in a period of 6 ms, what would the current be between the two
points?
Q2 What is the output in horsepower of a motor with an efficiency of 85% and an input
current of 7A at 120 V?
Q3 For the network in Fig. 1
a. Calculateab.
b. DetermineVb.
C. CalculateVc.
V
R,
R
E 20 y
R, 5n
Fig. I
Q4 For the parallel network in Fig.2:
1. Find the total resistance.
2. What is the voltage across each branch?
3. Determine the source current and the current through each branch.
4. Verify that the source current equals the sum of the branch currents.
20V R, 30 R91 R, 36 1
Fig. 2
Good luck
Dr. ASMAA SALIH HAMMOODI
Transcribed Image Text:Note : Answer all questions QI A) A 70 W bulb is on for one hour. Find the energy converted in 1. watthours 2. watt seconds 3. joules 4. kilowatt-hours B) The potential difference between two points in an electric circuit is 25 V. If 0.4 J of energy were dissipated in a period of 6 ms, what would the current be between the two points? Q2 What is the output in horsepower of a motor with an efficiency of 85% and an input current of 7A at 120 V? Q3 For the network in Fig. 1 a. Calculateab. b. DetermineVb. C. CalculateVc. V R, R E 20 y R, 5n Fig. I Q4 For the parallel network in Fig.2: 1. Find the total resistance. 2. What is the voltage across each branch? 3. Determine the source current and the current through each branch. 4. Verify that the source current equals the sum of the branch currents. 20V R, 30 R91 R, 36 1 Fig. 2 Good luck Dr. ASMAA SALIH HAMMOODI
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