A simple generator has a square armature 6.0 cm on a side. The armature has 85 turns of 0.59-mm-diameter copper wire and rotates in a 0.800-T magnetic field. The generator is used to power a lightbulb rated at 12.0 V and 25.0 W. At what rate should the generator rotate to provide 12.0 V to the bulb? Consider the resistance of the wire on the armature.
give,
side = 6 cm
turns = 85
diameter of wire = 0.59 mm
magnetic field = 0.8 T
rating of bulb = 12 V and 25 W
resistivity of copper = 1.7 × 10-8 ohm m
resistance = resistivity * length / area
resistance = 1.7 × 10-8 * 0.06 * 4 * 85 / (pi * (0.59 * 10^-3 / 2)^2)
resistance of wire = 1.268 ohm
power = V * I
25 = 12 * I
I = 2.08 A
induced magnetic field = -N * B * A / t
2.08 * 1.268 = -85 * 0.8 * 0.06 * 0.06 * x / t
x/t = 10.77 rotation per second
rate should the generator rotate = 10.77 rotation per second
A simple generator has a square armature 6.0 cm on a side. The armature has 85...
A simple generator has a square armature 7.0 cm on a side. The armature has 75 turns of 0.59-mm diameter copper wire and rotates in a 0.800-T magnetic field. The generator is used to power a lightbulb rated at 12.0 V and 25.0 W. At what rate should the generator rotate to provide 12.0 V to the bulb? Consider the resistance of the wire on the armature. (Express your answer to two significant figures and include the appropriate units.)
a) A simple generator has a square armature 5.0 cm on a side. The armature has 95 turns of 0.59-mm-diameter copper wire and rotates in a 0.650-T magnetic field. The generator is used to power a lightbulb rated at 12.0 V and 25.0 W. At what rate should the generator rotate to provide 12.0 V to the bulb? Consider the resistance of the wire on the armature. b) Two resistanceless rails rest 23 cm apart on a 6.0∘ ramp. They...
At what rate should the generator rotate to provide 12.0 V to the bulb? Consider the resistance of the wire on the armature. A simple generator has a square armature 7.0 cmon a side. The armature has 95 turns of 0.59-mm-diameter copper wire and rotates in a 0.750-T magnetic field. The generator is used to power a lightbulb rated at 12.0 V and 25.0 W.
The armature of a generator consists of a flat, square coil with
150 turns and sides with a length of 20.0 cm. The coil rotates in a
magnetic field of 4.00 T at 300 revolutions per minute. The
resistance of the coil is 15.0 ohms. What is the peak current
produced in the coil (in A)?
(A) 37.5 (B) 84.3 (C) 68.4 (D) 24.9 (E) 12.0 (F)
50.3
The armature of a generator consists of a flat, square coil with...
6. The armature of a generator consists of a flat, square coil with 150 turns and sides with a length of 20.0 cm. The coil rotates in a magnetic field of 4.00 T at 300 revolutions per minute. The resistance of the coil is 15.0 ohms. What is the peak current produced in the coil (in A)? (A) 37.5 (B) 84.3 (C) 68.4 (D) 24.9 (E) 12.0 (F) 50.3
6. The armature of a generator consists of a flat, square coil with 150 turns and sides with a length of 20.0 cm. The coil rotates in a magnetic field of 4.00 T at 300 revolutions per minute. The resistance of the coil is 15.0 ohms. What is the peak current produced in the coil (in A)? (A) 37.5 (B) 84.3 (C) 68.4 (D) 24.9 (E) 12.0 (F) 50.3
The armature of a generator consists of a flat, square coil with 150 turns and sides with a length of 20.0 cm. The coil rotates in a magnetic field of 4.00 T at 300 revolutions per minute. The resistance of the coil is 15.0 ohms. What is the peak current produced in the coil (in A)? (A) 37.5 (B) 84.3 (C) 68.4 (D) 24.9 (E) 12.0 (F) 50.3
6. The armature of a generator consists of a flat, square coil with 150 turns and sides with a length of 20.0 cm. The coil rotates in a magnetic field of 4.00 T at 300 revolutions per minute. The resistance of the coil is 15.0 ohms. What is the peak current produced in the coil in A)? (A) 37.5 (B) 84.3 (C) 68.4 (D) 24.9 (E) 12.0 (F) 50.3
6. The armature of a generator consists of a flat, square coil with 150 turns and sides with a length of 20.0 cm. The coil rotates in a magnetic field of 4.00 T at 300 revolutions per minute. The resistance of the coil is 15.0 ohms. What is the peak current produced in the coil (in A)? (A) 37.5 (B) 84.3 (C) 68.4 (D) 24.9 (E) 12.0 (F) 50.3
6. The armature of a generator consists of a flat, square coil with 150 turns and sides with a length of 20.0 cm. The coil rotates in a magnetic field of 4.00 T at 300 revolutions per minute. The resistance of the coil is 15.0 ohms. What is the peak current produced in the coil (in A)? (A) 37.5 (B) 84.3 (C) 68.4 (D) 24.9 (E) 12.0 (F) 50.3 ОА OB OC O D ОЕ OF