An electric generator contains a coil of 130 turns of wire, each forming a rectangular loop 74.6 cm by 24.9 cm. The coil is placed entirely in a uniform magnetic field with magnitude B = 3.82 T and initially perpendicular to the coil's plane. What is in volts the maximum value of the emf produced when the loop is spun at 1120 rev/min about an axis perpendicular to the magnetic field?

10.85 kV

Explanation:    

The maximum value of the emf (ε) produced can be calculated using Faraday's law equation:

  (1)

Where:

N: is the turns of wire = 130 turns

Φ: is the magnetic flux = BAcos(θ)

B: is the magnetic field = 3.82 T

A: is the area of the coil = a*b = 0.746 m*0.249 m = 0.186 m²

θ: is the angle between the magnetic field lines and the normal to A = ωt = 2πft

f: is the frequency = 1120 rev/min = 18.7 rev/s    

From equation (1) we have:

Therefore, the maximum value of the emf produced is 10.85 kV.

I hope it helps you!  

The maximum value of the emf produced is 10819.098 V

Explanation:

Given data:

N = number of turn = 130

The area is:

B = magnetic field = 3.82 T

w = angular speed = 1120 rev/min = 117.286 rad/s

The maximum value of the emf produced is:

i had this question and the answer was 3.15 miles.

martina travels from school to her mom's office. from there, she walks to school. after school, she walks to the library and then to a friends house before finally ending back at home. find martina's total distance traveled.

a) 0 miles  

b) 0.4 miles  

c) 1 mile  

d) 3.15 miles

its a 5.5 n

glad that