Answered: A motor run by a 7.9-V battery has a… | bartleby

Related questions

Question

A motor run by a 7.9-V battery has a 17-turn
square coil with sides of length 3.4 cm and total
resistance 26 2. When spinning, the magnetic
field felt by the wire in the coil is 0.030 T.
What is the maximum torque on the motor?
Express your answer to two significant figures and include the
appropriate units.
T= 0.00027
N•m
Submit Previous Answers Request Answer
?
X Incorrect; Try Again; 4 attempts remaining

Expert Solution

Trending now

This is a popular solution!

Step by step

Solved in 3 steps with 3 images

SEE SOLUTION Check out a sample Q&A here

Blurred answer

Similar questions

Question 5: The loop in the figure below is being pushed into the 0.20 T magnetic field at 50 m/s. The resistance of the loop is 0.10 0. What is the magnitude of the current in the loop? 50 m/s ● B=0.20 T ● ● ● 5.0 cm ● • ●
A bar of mass ?m rests perpendicularly on a pair of rails separated by a distance ?L that lie in the ??-xy-plane, as shown. The bar is initially at the left edge of the rails at position ?=0.x=0. An external force moves the bar in the +?-+x-direction at a constant speed ?.v. The apparatus lies in a region of magnetic field ?⃗ B→ that is parallel to the ??-xz-plane and points at an angle ?θ above the −?-−x-axis. The magnitude ?B of the magnetic field decreases in the ?-x-direction according to the equation ?=?/(?+?),B=c/(a+x), where ?c and ?a are positive constants. Derive an expression for the magnetic flux ΦB(?)ΦB(t) as a function of time ?t through the loop formed by the bar and rails. Define the normal to the loop to be in the +?-+z-direction, and express your answer in terms of the given quantities.
QUESTION 6 A long, thin wire is made into circular loop that lies flat in the x-y plane. A magnetic field points in the positive x (i) direction and is increasing. Which of the following statements are true regarding the resulting current in the loop? The current will flow clockwise O current will not flow O The current will alternate between clockwise and counter clockwise The current will flow counter clockwise QUESTION 7 A long, thin wire is made into a loop that lies flat in the x-y plane. A decreasing magnetic field points in the negative y (-j) direction. Which of the following statements are true regarding the resulting current in the loop. O current will alternate between clockwise and counter clockwise O The current flows clockwise O current will not flow The current flows counter clockwise
A solenoid is wound on a rod 4 cm in diameter in 50 cm long. The windings carry a current of 3.5 A in the sense that is shown. The current produces a magnetic field of magnitude 4.1 mT at the center of the solenoid. The number of turns in the solenoid is closest to which? A. 4700 B. 3700 C. 470 D. 1900 E. 19
An electron is introduced into a uniform magnetic field, Bx = 50.0 μTesla directed at right angles to the electron’s velocity vy = 5 x105 m/s. The electron subsequently moves in a circular path. What is the radius of the circular path? Select one: a. 2.84 cm b. 5.68 cm c. 56.8 cm d. 2.84 m
Current Attempt in Progress A loop of wire has the shape shown in the drawing. The top part of the wire is bent into a semicircle of radius r = 0.30 m. The normal to the plane of the loop is parallel to a constant magnetic field (p = 0) of magnitude 0.77 T. What is the change AO in the magnetic flux that passes through the loop when, starting with the position shown in the drawing, the semicircle is rotated through half a revolution? B (into paper) ayt ΔΦ = i
6
A cylindrical solenoid that is 40-cm long generates a uniform magnetic field of strength 1.4 T inside the solenoid when the current is 7.0 A. How many turns of a single coil are present in this solenoid? a. 40,000 turns b. 64,000 turns c. 56,000 turns d. 48,000 turns e. 32,000 turns
Please solve the question correctly and also be sure to give the correct units. Thank you!
2 Problem 2 The two 10-cm-long parallel wires in Figure 2 are separated by 5.0 mm. What is the direction of the magnetic force between the two wires? For what value of the resistor R will the force between the two wires be 5.4 x 10-5 N? R 2 Ω ww ww + 9 V 10 cm 5.0 mm Figure 2 9 V
An electric generator has an 18-cm-diameter, 120-turn coil that rotates at 60 Hz in a uniform magnetic field that is perpendicular to the rotation axis. ▼ Part A What magnetic field strength is needed to generate a peak voltage of 210 V? Express your answer with the appropriate units. B = 0.20 Submit HA T 22 Previous Answers Request Answer ? X Incorrect; Try Again; One attempt remaining