Calculating Current and Torque in a Rectangular Loop

AI Thread Summary
To calculate the current in a rectangular loop with 260 turns, 33 cm wide, and 17 cm high, given a maximum torque of 24 N·m in a magnetic field of 0.49 T, the relevant equation is torque (τ) = NIABsin(θ). The torque reaches its maximum when the angle θ is π/2, making sin(θ) equal to 1. This simplifies the equation to τ = NIAB, allowing for the calculation of current (I) once the area (A) is determined. The discussion highlights confusion around using the equation and understanding the significance of the angle in torque calculations.
matt72lsu
Messages
94
Reaction score
0

Homework Statement


A rectangular loop of 260 turns is 33 cm wide and 17 cm high.
What is the current in this loop if the maximum torque in a field of 0.49 T is 24 N m?


Homework Equations



torque (t) = NIABsintheta

The Attempt at a Solution


I'm not actually sure if this is even the correct equation. It was the closest one I could find with most of the variables. If it is the correct one, how do you find sin? Thanks for the help
 
Physics news on Phys.org
The torque is maximum when theta is pi/2.
 
i have no idea what that means
 
matt72lsu said:
i have no idea what that means
The torque is maximum when theta is pi/2. So that sin(pi/2) = 1.
 
oh ok. thanks
 

Thread 'Struggling to understand the concept of this question (ice cube in water optics question)'

TL;DR Summary: I came across this question from a Sri Lankan A-level textbook. Question - An ice cube with a length of 10 cm is immersed in water at 0 °C. An observer observes the ice cube from the water, and it seems to be 7.75 cm long. If the refractive index of water is 4/3, find the height of the ice cube immersed in the water. I could not understand how the apparent height of the ice cube in the water depends on the height of the ice cube immersed in the water. Does anyone have an...
View full post »
Thread 'Variable mass system : water sprayed into a moving container'

Thread 'Variable mass system : water sprayed into a moving container'

Starting with the mass considerations #m(t)# is mass of water #M_{c}# mass of container and #M(t)# mass of total system $$M(t) = M_{C} + m(t)$$ $$\Rightarrow \frac{dM(t)}{dt} = \frac{dm(t)}{dt}$$ $$P_i = Mv + u \, dm$$ $$P_f = (M + dm)(v + dv)$$ $$\Delta P = M \, dv + (v - u) \, dm$$ $$F = \frac{dP}{dt} = M \frac{dv}{dt} + (v - u) \frac{dm}{dt}$$ $$F = u \frac{dm}{dt} = \rho A u^2$$ from conservation of momentum , the cannon recoils with the same force which it applies. $$\quad \frac{dm}{dt}...
View full post »

Similar threads

Current in a current-carrying loop experiencing no torque
Replies
1
Views
1K
Torque on a Circular Current Loop under a Misaligned Magnetic Field
Replies
1
Views
997
How Do You Calculate the Magnetic Moment and Torque of a Rectangular Loop?
Replies
3
Views
3K
Determining the direction of torque
Replies
14
Views
2K
Torque on current carrying loop/Diploe moment of loop
Replies
3
Views
2K
Finding the torque on a wire between two poles
Replies
6
Views
1K
How to Calculate the X-Component of the Magnetic Moment in a Rectangular Loop?
Replies
3
Views
4K
Clarification of basic formulas
Replies
1
Views
1K
Maximum torque for current loop
Replies
3
Views
5K
Torque on cylinder due to current in loop
Replies
1
Views
3K

Hot Threads

Recent Insights

Back
Top