A 6.0 H coil whose resistance is 12 Q is connected in series with a 24 0 resistor and to a 144 V battery and a switch. The switch is closed at t = 0. Determine the energy stored in the magnetic field at steady state.
A 6.0 H coil whose resistance is 12 Q is connected in series with a 24 0 resistor and to a 144 V battery and a switch. The switch is closed at t = 0. Determine the energy stored in the magnetic field at steady state.
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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![a.
0.2
b. 0.3
C. 0.1
d. U.4
A 6.0 H coil whose resistance is 12 Q is connected in series with a 24 Q resistor and to a 144 V
battery and a switch. The switch is closed at t = 0. Determine the energy stored in the magnetic
field at steady state.
50 J
b. 48 J
c. 52 J
d. 46 J
a.
Two coils of inductances 4 H and 6 H are connected in parallel. If their mutual inductance is 3 H.
Calculate the equivalent inductance of the combination if mutual inductance assists and if mutual
inductance opposes the self-inductance respectively.
a.
2.4 H & 1.4 H
b. 3.75 H & 0.94 H
c 6.25 H & 2.75 H
d. 16 H & 4 H
A 50 mH inductor is charged to store 1 J of energy. If an uncharged 30 mH inductor is then
connected across its terminals, how much energy is transferred to the second inductor?
a.
0.154 J
b. 0.262 J
C. 0.234 J
d. 0.141 J
A coil of 250 turns is wound on a closed iron ring whose cross-sectional area is 20 cm and mean
length of 100 cm. Determine the energy stored in the magnetic field if a current of 2 A is passed
through it. Assume the permeability if iron is 900.
2.83 J
b. 3.12 J
C. 2.03 J
d. 1.88 J
a.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F3c25b93e-cd66-47d7-9655-0482183683cc%2F49e17145-1b13-4faa-ac88-1480a96ff130%2Fts7sy_processed.jpeg&w=3840&q=75)
Transcribed Image Text:a.
0.2
b. 0.3
C. 0.1
d. U.4
A 6.0 H coil whose resistance is 12 Q is connected in series with a 24 Q resistor and to a 144 V
battery and a switch. The switch is closed at t = 0. Determine the energy stored in the magnetic
field at steady state.
50 J
b. 48 J
c. 52 J
d. 46 J
a.
Two coils of inductances 4 H and 6 H are connected in parallel. If their mutual inductance is 3 H.
Calculate the equivalent inductance of the combination if mutual inductance assists and if mutual
inductance opposes the self-inductance respectively.
a.
2.4 H & 1.4 H
b. 3.75 H & 0.94 H
c 6.25 H & 2.75 H
d. 16 H & 4 H
A 50 mH inductor is charged to store 1 J of energy. If an uncharged 30 mH inductor is then
connected across its terminals, how much energy is transferred to the second inductor?
a.
0.154 J
b. 0.262 J
C. 0.234 J
d. 0.141 J
A coil of 250 turns is wound on a closed iron ring whose cross-sectional area is 20 cm and mean
length of 100 cm. Determine the energy stored in the magnetic field if a current of 2 A is passed
through it. Assume the permeability if iron is 900.
2.83 J
b. 3.12 J
C. 2.03 J
d. 1.88 J
a.
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