Acylindrical coil has 400 turns and a radius of 2.00 cm. the external magnetic field in the region of the coil is uniform and axial. the field rises from 6.00 x 10^-2t to 13.0 x 10^-2 tin 2.00 minutes. find the induced emf across the ends of the coil. the ends of the coil are attached to a resistor of 6 ohms. find the induced current i.

2.93 x 10⁻⁴ volts

4.88 x 10⁻⁵ A

Explanation:

N = Number of turns in cylindrical coil = 400

r = radius of the coil = 2 cm = 0.02 m

Area of the coil is given as

A = πr²

A = (3.14)(0.02)²

A = 12.56 x 10⁻⁴ m²

ΔB = Change in magnetic field = 0.13 - 0.06 = 0.07 T

t = time interval = 2 min = 2 x 60 sec = 120 sec

Induced emf is given as

E = 2.93 x 10⁻⁴ volts

R = resistance of the resistor = 6 ohm

i = induced current

Using ohm's law

E = i R

2.93 x 10⁻⁴ = i (6)

i = 4.88 x 10⁻⁵ A

nec chapter 5 contains

c. information on special occupancy areas

nec chapter 6 covers

a. special equipment

which of the following rules contain the words shall or shall not and must be adhered to?

b. mandatory rules

which of the following rules identify actions that are allowed but not required and typically cover options or alternative methods?

c. optional rules

which of the following serves as the introduction to the nec and provides an overview of the book?

a. nec article 90

organizations that test products for safety are

c. nrtls

the nec is published by the

a national fire protection association

the nec is divided into

b. 9 chapters

the nec provides informative annexes for

c. informational materials and examples

two terms from nec article 100 that trainees should become familiar with are

b. labeled and listed

explanation: