A 125-turn rectangular coil of wire is hung from one arm of a balance, as the figure
Question:
Concepts:
(i) In a balanced, or equilibrium, condition the device has no angular acceleration. What does this imply about the net torque acting on the device?
(ii) What is torque?
(iii) In calculating the torques acting on an object in equilibrium, where do you locate the axis of rotation?
Calculations: When a constant 0.200-T magnetic field is turned on and there is a current of 8.50 A in the coil, how much additional mass m must be added to regain the balance?
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Concepts i According to Newtons second law as applied to rotational motion Equation 97 when the angular acceleration is zero the net torque is zero Co...View the full answer
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