Answer:
Power = 50204 [watts]
Explanation:
We know that the power is defined by the following expression:
Power = Work/time
where:
Power [watts]
time [seconds]
The work done will be the following:
Work = Force * distance [Joules]
Force[Newtons]
distance[meters]
Force = mass* gravity
Force=290 [kg]*9.81[m/s^2] =2844.9[N]
Work = 2844.9[N]*300[m] = 853470[J]
Therefore
Power = 853470 / 17 = 50204 [watts]
Answer:
(a) 24.35 A
(b) 0.089 Nm
Explanation:
N = 124
R = 1.86 cm = 0.0186 m
M = 3.28 A m^2
(a)
M = N I A
3.28 = 124 x I x 3.14 x 0.0186 x 0.0186
I = 24.35 A
(b) For maximum torque, angle = 90 degree
τ = M B Sin 90
τ = 3.28 x 27.4 x 10^-3 = 0.089 Nm
The rate of flow of electric CHARGE past any point is described in the unit of electric CURRENT ... the Ampere.
Value of resistor = (12V) /(1.2 x 10^-3A)=10000ohms=10k ohms
