1.Find the uncertainty in a calculated electrical potential difference from the measurements of current and resistance.
Posted: Fri Jul 15, 2022 7:27 am
1.Find the uncertainty in a calculated electrical potentialdifference from the measurements of current and resistance. Theelectric potential difference depends on current and resistanceaccording to this function V(I, R) = IR. Your measured currentand resistance have the following valuesand uncertainties I = 8.1 Amps, δR=0.8 Amps, R = 39.7 Ohms and δR= 0.4 Ohms. Whatis the uncertainty in the δV? Units are not needed in youranswer.
2. Find the uncertainty in the moment of inertia. Themoment of inertia of a disk depends on mass and radiusaccording to this function I(m,r) = 1/2 m r2. Yourmeasured mass and radius have thefollowing uncertainties δm=1.39 kgand δr= 0.73 m. What is the uncertainty in a momentof inertia,δI if the measured mass, m = 10.85 kg, andthe measured radius, r = 8.15 m? Units are not needed in youranswer.
2. Find the uncertainty in the moment of inertia. Themoment of inertia of a disk depends on mass and radiusaccording to this function I(m,r) = 1/2 m r2. Yourmeasured mass and radius have thefollowing uncertainties δm=1.39 kgand δr= 0.73 m. What is the uncertainty in a momentof inertia,δI if the measured mass, m = 10.85 kg, andthe measured radius, r = 8.15 m? Units are not needed in youranswer.