A machine has an efficiency of 60%. If the machine is req...
A machine has an efficiency of 60%. If the machine is required to overcome a load of 30 N with a force of 20 N calculate its mechanical advantage?
0.7
0.9
1.5
2.5
10.0
Correct answer is C
No explanation has been provided for this answer.
Which of the following practices will lead to losses in electrical power transmission? ...
If two parallel conductors carry currents flowing in the same direction, the conducts will ...
Which of the following statements about a progressive mechanical wave is correct? ...
A supply of 400V is connected across capacitors of 3μf and 6μf in series. Calculate the charge...
Efficiency of a transformer is equal to ...
Quantities of heat Q can be measured using a container called ...
An evidence of the wave nature of matter is ...
A rocket is fired from the earth's surface to a distant planet. By Newton's law of universal...
The range of wavelengths of the infrared waves in an electromagnetic spectrum is \(10^{-3}\) m ...