26201 Alternating Current Setwork PDF

Name: ID: 26201 Alternating Current Set Work Q01: Write the correct term for the definition below: _______________: The number of cycles an alternating electric current, sound wave, or vibrating object undergoes per second. ___...

Name: ID: 26201 Alternating Current Set Work Q01: Write the correct term for the definition below: _______________: The number of cycles an alternating electric current, sound wave, or vibrating object undergoes per second. ________________: A unit of frequency; one hertz equals one cycle per second. _________________: The storage of electricity in a capacitor; capacitance produces an opposition to voltage change. The unit of measurement for capacitance is the farad (F) or microfarad (µF). ___________________: The creation of a voltage due to a time-varying current; also, the opposition to current change, causing current changes to lag behind voltage changes. The unit of measure for inductance is the henry (H). ____________________: A magnetic field induced in the conductor carrying the current. Q02: What is the (E)voltage induced at the following phase angle (𝜃) 0°,45°,90°,120°,180, 270°,360°. When (Emax) the maximum induced voltage 230V? E at 0°= E at 180°= E at 45°= E at 270°= E at 90°= E at 360°= Q03: Write the symbol, unit of measurement and formula for the following: Frequency: Symbol: _________. unit of measurement: ________. Formula:___________________. period of a waveform: Symbol: _________. unit of measurement: ________. Formula: __________________. Q04: Determine the frequency of sine wave that repeated ten times in 0.6 seconds? ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ __________________________________________________________________________. Q05: Determine the period of sine wave. If the frequency is 15 Hz? ___________________________________________________________________________ ___________________________________________________________________________ __________________________________________________________________________. Q06: Determine the peak-to-peak voltage for a sine wave that has a peak voltage of 120V applies to either the positive or negative peak? ___________________________________________________________________________ ___________________________________________________________________________ __________________________________________________________________________. Q07: Determine the average value for a sine wave that has a peak voltage of 120V? ___________________________________________________________________________ ___________________________________________________________________________ __________________________________________________________________________. Q08: Determine the root-mean-square (rms) for a sine wave that has a peak voltage of 240V? ___________________________________________________________________________ ___________________________________________________________________________ __________________________________________________________________________. Q09: How is sine waveform produced? ___________________________________________________________________________ ___________________________________________________________________________ __________________________________________________________________________. Q10: Describe the voltage and current relationship in a resistive AC circuit as in the figures below? ___________________________________________________________________________ ___________________________________________________________________________ __________________________________________________________________________. Q11: What is the symbol and unit of measurement for inductance? Symbol: ______________. unit of measurement:__________________. Q12: What are the factors affecting inductance? List 5. - - - - - Q13: What is the inductive reactance symbol, unit of measurement, and formula? Symbol: _________. unit of measurement: ________. Formula:___________________. Q14: Determine inductive reactance (XL ), if frequency (f) 60Hz and inductance (L) 40H? ___________________________________________________________________________ ___________________________________________________________________________ __________________________________________________________________________. Q15: As it shows in the figures below, in inductive AC circuit the voltage peaks positive first, then 90° later the current peaks positive. Current lags the applied voltage in an _____________ by 90°. Q16: A capacitor is a device that stores an electric charge in a dielectric material. [ True/ False] Q17: What are the factors affecting capacitance? List 3. - __________________________________________________________________. - __________________________________________________________________.  - __________________________________________________________________. Q18: What is the formula used to calculating the equivalent capacitance for capacitors connected as the following: capacitors connected in series: capacitors connected in parallel: Q19: What is the capacitive reactance symbol, unit of measurement and formula? Symbol: _________. unit of measurement: ________. Formula:___________________. Q20: What is the capacitive reactance of a 25µF capacitor and frequency is 10 kilohertz? ___________________________________________________________________________ ___________________________________________________________________________ __________________________________________________________________________. Q21: As it shows in the figures below, in capacitive AC circuit the current leads the voltage across the _______________by 90°. Q22: List the three types of power there in AC circuits, write symbol and formula and unit of measurement? 1- __________________________. Symbol: _________. unit of measurement: ________. Formula:___________________. 2- __________________________. Symbol: _________.  unit of measurement: ________. Formula:___________________. 3- __________________________. Symbol: _________. unit of measurement: ________. Formula:___________________. Q23: Explain the relationship between voltage and current in RLC series and parallel circuits: Series circuits : ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ __________________________________________________________________________. Parallel circuits: ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ __________________________________________________________________________. Q24: What are the basic components of transformers? 1- ____________________________________________________________________. 2- ____________________________________________________________________. 3- ____________________________________________________________________. Q25: Explain basic transformer action. ___________________________________________________________________________ ___________________________________________________________________________ __________________________________________________________________________. Q26: The primary winding in a transformer is connected to the ___________________. Q27: The secondary winding in a transformer is connected to the_________________. Q28: Determine voltage across the secondary (ES), if the transformer has 2000 turns (NP) in the primary, 1000 turns (NS) in the secondary, and 240VAC applied to the primary? ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ __________________________________________________________________________. Q29: List 4 types of transformers? - - - - Q30: Isolation transformers are wound so that their primary and secondary voltages are ______________. Q31: What is the purpose of using isolation transformers? ___________________________________________________________________________ ___________________________________________________________________________ __________________________________________________________________________. Q32: What is the used of potential transformer? ___________________________________________________________________________ __________________________________________________________________________. Q33: Write the name for each side of the transformer?