4.0 x 10-26J
4.0 x 10-21J
6.4 x 10-20J
3.2 x 10-15J
2.5 x 10-20J
Correct answer is D
E = 12QV=12×1.6×10−19×40000 = 3.2 x 10-15J
Three resistors, with substances 250Ω, 500Ω and 1kΩ are connected in seri...
A force of 15N stretches a spring to a total length of 30cm. An additional force of 10N stretches th...
A rod of initial length 2m at a temperature of 25oC is heated to 80oC. Calculate the increase in len...
As the pressure of a fluid increases, its viscosity ...
A plane inclined at an angle at 30o to the horizontal has an efficiency of 50%. The force parallel t...
A short chain is sometimes attached to the back of a petrol tanker to? ...
Water in an open container boils at a lower temperature when heated at the top of a mountain than at...
Hot water is added to three times its mass of water at 10oC and the resultant temperature is 20oC. W...
The magnetic force on a charged particle moving with velocity v is...
A relative density bottle has a mass of 19 g when empty. When it is completely filled with water, it...
Data Interpretation Questions and Answers
Abstract Reasoning Questions and Answers
Logical Reasoning Questions and Answers
Numerical Reasoning Questions and Answers
Nigeria General Knowledge Questions and Answers
Quantitative Reasoning Questions and Answers
Verbal Reasoning Questions and Answers
Personality Test
Situational Judgement Questions and Answers
Puzzles Questions and Answers
Microsoft Office Questions and Answers
Spatial Reasoning Questions and Answers
Typing Speed and Accuracy Test
See all →