Homework Answers
Magnetic field at the axis of an electromagnet is given by B =
0nI
Where n is number of turns in solenoid per unit length and I is current in it.
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4) A Wattmeter is similar to a galvanometer (see notes): it measures the power consumption of...
a. A 117‑turn circular coil of radius 2.63 cm and negligible resistance is immersed in a...
a. A 117‑turn circular coil of radius 2.63 cm and negligible resistance is immersed in a uniform magnetic field that is perpendicular to the plane of the coil. The coil is connected to a 16.7 Ω16.7 Ω resistor to create a closed circuit. During a time interval of 0.125 s,, the magnetic field strength decreases uniformly from 0.447 T to zero. Find the energy, in millijoules, that is dissipated in the resistor during this time interval. b. Mindy, a medical device...
A rigid wire with resistance of 0.111 Ω forms a nearly complete circular loop (see figure...
A rigid wire with resistance of
0.111 Ω forms a nearly complete circular loop (see figure below). A
8.38 V battery is connected between points a and b. Find the torque
exerted on the wire by a magnetic field of magnitude 0.400 T,
directed to the right, in the plane of the loop.
0.400 Ť
3 questions here please and thank you! QUESTION 10 A square coil (20 cm x 20...
3 questions here please and thank you!
QUESTION 10 A square coil (20 cm x 20 cm) with 50 turns is rotating in a magnetic field of 0.20 T. How many times per second must the loop rotate to produce a maximum voltage of 6.0 V? a. 7.50 b. 15.0 c. 4.78 d. 2.39 QUESTION 11 A solenoid is 14 cm long and has a total of 350 turns. What current must flow through the solenoid to produce a magnetic...
Mindy, a medical device engineer, is designing an apparatus to monitor the breathing of a patient....
Mindy, a medical device engineer, is designing an apparatus to monitor the breathing of a patient. The apparatus consists of a stretchable loop of conductive material wrapped in a small band around the patient's chest. A constant uniform external magnetic field is produced by a nearby solenoid. As the patient inhales, his chest expands, stretching the chest band. The resulting increase in the area of the loop causes an emf to be induced in the loop. By measuring the induced...
1) A 179‑turn circular coil of radius 3.55 cm and negligible resistance is immersed in a...
1) A 179‑turn circular coil of radius 3.55 cm and negligible resistance is immersed in a uniform magnetic field that is perpendicular to the plane of the coil. The coil is connected to a 13.7 Ω resistor to create a closed circuit. During a time interval of 0.121 s, the magnetic field strength decreases uniformly from 0.643 T to zero. Find the energy, in millijoules, that is dissipated in the resistor during this time interval. energy: mJ 2) You decide...
1) The armature of an ac generator is a rectangular coil 2.00 cm by 6.00 cm...
1) The armature of an ac generator is a rectangular coil 2.00 cm by 6.00 cm with 80 turns. It is immersed in a uniform magnetic field of magnitude 0.250 T. If the amplitude of the emf in the coil is 22.0 V, at what angular speed is the armature rotating? _______rad/s 2) The magnetic field between the poles of an electromagnet is 3.30 T. A coil of wire is placed in this region so that the field is parallel...
Both please :) 20 Mindy, a medical device engineer, is designing an apparatus to monitor the...
Both please :)
20 Mindy, a medical device engineer, is designing an apparatus to monitor the breathing of a patient. The apparatus consists of a stretchable loop of conductive material wrapped in a small band around the patient's chest. A constant uniform external magnetic field is produced by a nearby solenoid. As the patient inhales, his chest expands, stretching the chest band. The resulting increase in the area of the loop causes an emf to be induced in the loop....
1 of 15 When a field is parallel to a plane of area, the magnetic flux...
1 of 15 When a field is parallel to a plane of area, the magnetic flux through the coil is A zero. B infinite. C 2. D 5. Question 2 of 15 A moving charge experiences magnetic forces because of a A magnetic flux. B magnetic field. C magnetic current. D both a and b. Question 3 of 15 Total number of magnetic field lines passing through an area is called A magnetic flux density. B magnetic flux. C emf....
Help me solve this question asap and explain it pls TUTORIAL 5: ELECTROMAGNETIC IN A coil...
Help me solve this question asap and explain it pls
TUTORIAL 5: ELECTROMAGNETIC IN A coil is placed in a magnetic field, and the no parallel to the field. Which of the following options cau emf induced in the coil to be large as possible? normal to the plane of the coil ollowing options causes the magnitude of a c: The magnitude of the rield is small and the its rate of change is large C. The magnitude of the...
A rectangular loop consists of 120 closely wrapped turns and has dimensions 0.40 m by 0.30...
A rectangular loop consists of 120 closely wrapped turns and has dimensions 0.40 m by 0.30 m. The loop is hinged along the y-axis, and the plane of the coil makes an angle of 30.0° with the x-axis (see figure below). What is the magnitude of the torque exerted on the loop by a uniform magnetic field of 0.98 T directed along the x-axis, when the current in the windings has a value of 1.2 A in the direction shown?...
A rigid wire with resistance of
0.111 Ω forms a nearly complete circular loop (see figure below). A
8.38 V battery is connected between points a and b. Find the torque
exerted on the wire by a magnetic field of magnitude 0.400 T,
directed to the right, in the plane of the loop.
0.400 Ť
3 questions here please and thank you!
QUESTION 10 A square coil (20 cm x 20 cm) with 50 turns is rotating in a magnetic field of 0.20 T. How many times per second must the loop rotate to produce a maximum voltage of 6.0 V? a. 7.50 b. 15.0 c. 4.78 d. 2.39 QUESTION 11 A solenoid is 14 cm long and has a total of 350 turns. What current must flow through the solenoid to produce a magnetic...
Mindy, a medical device engineer, is designing an apparatus to monitor the breathing of a patient. The apparatus consists of a stretchable loop of conductive material wrapped in a small band around the patient's chest. A constant uniform external magnetic field is produced by a nearby solenoid. As the patient inhales, his chest expands, stretching the chest band. The resulting increase in the area of the loop causes an emf to be induced in the loop. By measuring the induced...
Both please :)
20 Mindy, a medical device engineer, is designing an apparatus to monitor the breathing of a patient. The apparatus consists of a stretchable loop of conductive material wrapped in a small band around the patient's chest. A constant uniform external magnetic field is produced by a nearby solenoid. As the patient inhales, his chest expands, stretching the chest band. The resulting increase in the area of the loop causes an emf to be induced in the loop....
Help me solve this question asap and explain it pls
TUTORIAL 5: ELECTROMAGNETIC IN A coil is placed in a magnetic field, and the no parallel to the field. Which of the following options cau emf induced in the coil to be large as possible? normal to the plane of the coil ollowing options causes the magnitude of a c: The magnitude of the rield is small and the its rate of change is large C. The magnitude of the...
A rectangular loop consists of 120 closely wrapped turns and has dimensions 0.40 m by 0.30 m. The loop is hinged along the y-axis, and the plane of the coil makes an angle of 30.0° with the x-axis (see figure below). What is the magnitude of the torque exerted on the loop by a uniform magnetic field of 0.98 T directed along the x-axis, when the current in the windings has a value of 1.2 A in the direction shown?...
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