SOLUTION:

You are looking down on a N = 8 turn coil in a magnetic field B
= 0.9 T which points directly down into the screen. If the diameter
of the coil d = 1.8 cm, and the field goes to zero in t = 0.04
seconds, what would be the magnitude of the voltage (in Volts) and
direction of the induced current? Indicate the direction of the
current by the sign in front of your voltage: counterclockwise is
positive,...
B into sereen You are looking down on a N = 6 turn coil in a magnetic field B = 0.5 T which points directly down into the screen. If the diameter of the coil d = 3 cm, and the field goes to zero in t = 0.32 seconds, what would be the magnitude of the voltage in Volts) and direction of the induced current? Indicate the direction of the current by the sign in front of your voltage:...
A 20-turn coil with radius 4 cm lies in the x-y plane. The coil has a total resistance of 5 Ω. The coil is in the presence of a uniform 0.25 T magnetic field oriented 15° with respect to the positive z-axis. Give the direction (clockwise or counter-clockwise) and magnitude of the current that will be induced in the coil by the field. Additionally what happens to the value of the induced current if the magnetic field changes to a...
The component of the external magnetic field along the central axis of a 125-turn circular coil of radius 26.0 cm decrsases from 2.40 T to 0.650 T in 3.50 s. If the resistance of the col is 9.000,what is the magnitude of the induced current in the coil? Number What is the direction of the current if the axial component of the field points away from the viewer? clockwise O counter-clockwise
The component of the external magnetic field along the...
A uniform magnetic field points directly into your paper (make a sketch). A 7 turn coil of wire with a radius of 14.2 cm lies in the plane of the paper. Over a period of 0.00035 seconds, the field is increased from 0.300 T to 1.10 T. How much emf is induced in the coil while B is changing? A-0.12 volts B- 0.91 volts C-28 volts D- 16,000 volts E- 250 volts Which way is the induced emf (or induced...
A uniform magnetic field points directly into your paper (make a sketch). A 7 turn coil of wire with a radius of 14.2 cm lies in the plane of the paper. Over a period of 0.00035 seconds, the field is increased from 0.300 T to 1.10 T. How much emf is induced in the coil while B is changing? 0.91 volts 16,000 volts 1000 volts 0.12 volts 28 volts
A 133 turn circular coil of radius 2.07 cm is immersed in a uniform magnetic field that is perpendicular to the plane of the coil. Over an interval of 0.193 s, the magnetic field strength increases from 54.1 mT to 94.5 mT. Find the magnitude of the average emf Eavg induced in the coil during this time interval, in millivolts. Eavg = ??? mV What is the direction of the current if the axial component of the field points away...
1. A 85 turn elastic circular coil of wire initially has a radius of 74.2 cm and is immersed in a uniform magnetic field with a strength of 0.495 T. At t 0, the coil is released and begins decreasing in radius at a constant rate of 7.22 cm/s. While it contracts, the number of turns does not change. a) Write the magnetic flux through a single turn of the coil as a function of time. (Hint: What causes the...
The rectangular coil in the figure below has 73 turns, is 25 cm wide and 30 cm long, and is located in a magnetic field B 0.14 T directed out of the page as shown. Only half of the coil in the region of the magnetic field. The resistance of the coil is 23 2. Find the magnitude and direction of the induced current if the coil is moving with a velocity of 1.9 m/s to the right, up the...
A 25-turn coil UN Shape square of 1.80 cm on each side. The total resistance in the coil is 0.35 ohms and applies a magnetic field perpendicular to the plane of the coil. ( A) If the magnetic field varies from zero up 0.50 T is 8 Seconds , get the emf induced in the coil ( b ) Find the magnitude and direction of the induced current in the coil.