The main function of the mouth of a telephone is to convert sound energy into?
A. heat energy B. light energy C. chemical energy D. electrical energy E. mechanical energy Correct Answer: Option D – electrical energy
CalcuIate the power delivered by a 3-phase line if its voltage and current at 132KV and 60A respectively.
A. 2.38 x 10^7W B. 7.92 x 10^6W C. 3.96 x 10^6W D. 2.64 x 10^6W E. 7.92 x 10^4W Correct Answer: Option B – 7.92 x 10^6W
The diagram below represents a stationary wave set up in a string which is fixed at both ends. lf the frequency of the wave is 256Hz and the distance N1 N2 equals 1.5m. Calculate the speed of the wave.
A. 128ms-1 B. 192ms-1 C. 384ms-1 D. 768ms-1 E. 1536ms-1 Correct Answer: Option D – 768ms-1What is the decay constant of a radioactive element whose half-life is 3 seconds?
A. 0.132s-1 B. 0.23s-1 C. 0.347s-1 D. 0.693s-1 E. 0.924s-1 Correct Answer: Option B – 0.23s-1
The resistance in a series R-C circuit is 5 Ω. If the impedance of the circuit is 13 Ω . Calculate the reactance of the capacitor?
A. 65 Ω B. 18 Ω C. 16 Ω D. 14 Ω E. 12 Ω Correct Answer: Option E – 12 ΩProducts
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Land Law and the Consequences of Unauthorized Land Transfers in Nigeria
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Co-Ownership Structures and Land Acquisition Methods in Nigeria
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Rights in Community Land and Fundamental Land Concepts in Nigeria
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Customary Land Control and the Origins of Nigeria's Land Use Act
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Land Ownership Principles and Transaction Laws in Nigeria
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