5W
6W
7W
8W
Correct answer is A
I = 1A, F = 800 cycles/s = 800Hz R = 5Ω, L = 2.5mH P = I2R = I2 × 5 = 5W
A string of length 4m is extended by 0.02m when a load of 0.4kg is suspended at its end. What will b...
If the current in the resistor R in diagram above is 0.05A, calculate the p.d. across the inductor. ...
If a radioactive atom emits a beta particle, Its mass number ...
Ripples on water are similar to light waves in that they both ...
A gas occupies a certain volume at 27°C. At what temperature will its volume be three times the ori...
Quantities of heat Q can be measured using a container called ...
Which of the following statements about the mouth piece of a telephone is correct? It converts sound...
The temperature of glass vessel containing 100cm3 of mercury is raised from 10oC to 100oC. Calculate...
The minimum energy required to remove an electron from an atom is known as ...
A mass of gas at 7oC and 70cm of mercury has a volume of 1200cm3. Determine its volume at 27oC and p...
Verbal Reasoning Questions and Answers
Microsoft Office Questions and Answers
Quantitative Reasoning Questions and Answers
Typing Speed and Accuracy Test
Abstract Reasoning Questions and Answers
Nigeria General Knowledge Questions and Answers
Puzzles Questions and Answers
Situational Judgement Questions and Answers
Logical Reasoning Questions and Answers
Data Interpretation Questions and Answers
Personality Test
Numerical Reasoning Questions and Answers
Spatial Reasoning Questions and Answers
See all →