What is an automatic gain control?
What is an automatic gain control?It is a closed loop feedback regulating in an amplifier or chain of amplifiers, the […]
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Highlight five(5) differences between single phase and three phase supplies
Single phase supply Three phase supply In a single phase supply, it power is supplied through two wires. It is
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What is an adjacent channel interference (ACI) in Telecommunication
What is an adjacent channel interference (ACI)? ACI may be caused by inadequate filtering, improper tuning and poor frequency control
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Briefly explain a cathode ray oscilloscope [6 marks
DEPARTMENT OF ELECTRICAL ENGINEERINGSECOND SEMESTER EXAMINATION 2016/2017 ACADEMY SESSION COURSE TITLE: ELECTRICAL AND ELECTRONIC INSTRUMENTATION 11COURSE CODE: EEC 216. CLASS:ND11TIME
Briefly explain a cathode ray oscilloscope [6 marks Read More »
Resistance of 40Ω, inductance of 0.4Hz and capacitance of 200µF are connected in series and are fed by 200v, 60Hz supply. Find;
CIRCUIT THEOREM EEC 222 A resistance of 40Ω, inductance of 0.4Hz and capacitance of 200µF are connected in series and
3-phase induction motor is wound for 4 Poles and is supplied from a 50Hz system. Calculate;
Synchronous speed Rotor speed when slip is 4% Rotor frequency (5 marks) SOLUTIONI) Synchronous speed = f/p = 50/2 =
MENTION SIX [6] STEPS INVOLVED IN SOLDERING TECHNIQUES
ENUMERATE 5 (FIVE) MAINTENANCE PROCESSES OF A BATTERY. (5 marks) Batteries should be kept neat and clean to increase the
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SOLVE PROBLEMS INVOLVING RESISTIVITY AND CONDUCTIVITY
resistors of resistance R₁, R₂ and R₃ are joint together, they’re said to be connected in series. It should be noted that;
The current through a series circuit is the same all over ( I.e I=i₁=i₂=i₃).
The voltage drop across each resistor is different depending on its resistances
The applied voltage (Vs) is equal to the sum of the Potential difference across each resistor. (i.e Vs = V(R₁) + V(R₂) + V(R₃) or V = V₁ + V₂ + V₃
Where Vs = IR; V₁ = IR₁; V₂ = IR₂; V₃ = IR₃
IR = IR₁ + IR₂ + IR₃
⇒(equivalent resistance), Req = R₁ + R₂ + R₃
For n resistors connected in series, the equivalent resistance
Req is given by Req
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ELECTRICAL ENERGY AND POWER
At the end of this post, you should be able to; State Joule’s law Solve problems involving Electrical energy and
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ELECTRICAL TERMS, DEFINITIONS, INSTALLATION TOOLS, APPLICATION AND MAINTENANCE
Instruments used in the workshop should be properly insulated for the available voltage to prevent electric shock.
2. Workshop floor should be free from grease, oil and water to prevent electric workers from falling or stumbling and getting injured.
3. First aid must be available and equipped in the workshop.
4. Safety boots should be worn to prevent electrical hazard
5. The passage way to the workshop should be free from obstruction to allow free movement of workers.
6. Protective
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