A- A fixed 12.3-cm-diameter wire coil is perpendicular to a magnetic field 0.80 T pointing up....
A- A fixed 12.3-cm-diameter wire coil is perpendicular to a magnetic field 0.80 T pointing up. In 0.29 s , the field is changed to 0.16 T pointing down.What is the average induced emf in the coil?
B- A step-up transformer increases 30 V to 240 V .What is the current in the secondary coil as compared to the primary coil? Assume 100% efficiency?
C-A model-train transformer plugs into 120-V ac and draws 0.28 Awhile supplying 5.0 A to the train.What voltage is present across the tracks? Assume 100% efficiency.?
D-If the current in a 190 mH coil changes steadily from 25.0 A to 12.0 A in 290 ms , what is the magnitude of the induced emf?
E- Determine the inductance L of a 0.50-m-long air-filled solenoid 3.0 cm in diameter containing 8200 loops.
F- A 2700-pF capacitor is connected in series to a 57.0-μH coil of resistance 3.00 Ω .What is the resonant frequency of this circuit?
Homework Answers
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A- A fixed 12.3-cm-diameter wire coil is perpendicular to a
magnetic field 0.80 T pointing up....
A fixed 19.7- cm-diameter wire coil is perpendicular to a magnetic field 0.49 T pointing up....
A fixed 19.7- cm-diameter wire coil is perpendicular to a magnetic field 0.49 T pointing up. In 0.16 ss , the field is changed to 0.29 T pointing down. What is the average induced emf in the coil?
A fixed 16.5-cm-diameter wire coil is perpendicular to a magnetic field 0.80 T pointing up. In...
A fixed 16.5-cm-diameter wire coil is perpendicular to a magnetic field 0.80 T pointing up. In 0.22 s , the field is changed to 0.17 T pointing down. What is the average induced emf in the coil?
A fixed 15.2-cm-diameter wire coil is perpendicular to a magnetic field 0.58 T pointing up. In...
A fixed 15.2-cm-diameter wire coil is perpendicular to a magnetic field 0.58 T pointing up. In 0.20 s , the field is changed to 0.29 T pointing down. What is the average induced emf in the coil? Express your answer to two significant figures and include the appropriate units.
A fixed 17.1-cm-diameter wire coil is perpendicular to a magnetic field 0.48 T pointing up. In...
A fixed 17.1-cm-diameter wire coil is perpendicular to a magnetic field 0.48 T pointing up. In 0.14 s, the field is changed to 0.34 T pointing down. Part A What is the average induced emf in the coil? Express your answer to two significant figures and include the appropriate units. 0 på ? E = Value V
A fixed 19.8-cm-diameter wire coil is perpendicular to a magnetic field 0.49 T pointing up. In...
A fixed 19.8-cm-diameter wire coil is perpendicular to a magnetic field 0.49 T pointing up. In 0.15 s , the field is changed to 0.20 T pointing down. What is the average induced emf in the coil?
A fixed 12.1-cm-diameter wire coil is perpendicular to a magnetic field 0.55 T pointing up. In...
A fixed 12.1-cm-diameter wire coil is perpendicular to a magnetic field 0.55 T pointing up. In 0.26 s, the field is changed to 0.20 T pointing down. Part A What is the average induced emf in the coil? Express your answer to two significant figures and include the appropriate units. НА ? E = Value Units Submit Request Answer
A fixed 12.1-cm-diameter wire coil is perpendicular to a magnetic field 0.55 T pointing up. In...
A fixed 12.1-cm-diameter wire coil is perpendicular to a magnetic field 0.55 T pointing up. In 0.26 s, the field is changed to 0.20 T pointing down. Part A What is the average induced emf in the coil? Express your answer to two significant figures and include the appropriate units. HÅ ? FR E = Value Units Submit Previous Answers Request Answer X Incorrect; Try Again; 2 attempts remaining
A fixed 15.0-cm-diameter wire collis perpendicular to a magnetic field 0.58 T pointing up. In 0.11...
A fixed 15.0-cm-diameter wire collis perpendicular to a magnetic field 0.58 T pointing up. In 0.11 s, the field is changed to 0.28 T pointing down Part A What is the average Induced emf in the coll? Express your answer to two significant figures and include the appropriate units. ? E = Value Units Submit Request Answer Provide Feedback
A 6.80 cm diameter wire coil is initially oriented so that its plane is perpendicular to...
A 6.80 cm diameter wire coil is initially oriented so that its plane is perpendicular to a magnetic field of 0.780 T pointing up. During the course of 0.160 s, the field is changed to one of 0.280 T pointing down. What is the average induced emf in the coil?
A 8.30 cm diameter wire coil is initially oriented so that its plane is perpendicular to...
A 8.30 cm diameter wire coil is initially oriented so that its plane is perpendicular to a magnetic field of 0.680 T pointing up. During the course of 0.180 s, the field is changed to one of 0.250 T pointing down. What is the average induced emf in the coil?
A fixed 17.1-cm-diameter wire coil is perpendicular to a magnetic field 0.48 T pointing up. In 0.14 s, the field is changed to 0.34 T pointing down. Part A What is the average induced emf in the coil? Express your answer to two significant figures and include the appropriate units. 0 på ? E = Value V
A fixed 12.1-cm-diameter wire coil is perpendicular to a magnetic field 0.55 T pointing up. In 0.26 s, the field is changed to 0.20 T pointing down. Part A What is the average induced emf in the coil? Express your answer to two significant figures and include the appropriate units. НА ? E = Value Units Submit Request Answer
A fixed 12.1-cm-diameter wire coil is perpendicular to a magnetic field 0.55 T pointing up. In 0.26 s, the field is changed to 0.20 T pointing down. Part A What is the average induced emf in the coil? Express your answer to two significant figures and include the appropriate units. HÅ ? FR E = Value Units Submit Previous Answers Request Answer X Incorrect; Try Again; 2 attempts remaining
A fixed 15.0-cm-diameter wire collis perpendicular to a magnetic field 0.58 T pointing up. In 0.11 s, the field is changed to 0.28 T pointing down Part A What is the average Induced emf in the coll? Express your answer to two significant figures and include the appropriate units. ? E = Value Units Submit Request Answer Provide Feedback
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