# Physics

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Solution Library **

#### Calculation of Capacitor Reactance and Current Flow Through a Capacitor

Question A 10 F capacitor has a 15 kHz alternating voltage of 15Vp.p applied across it. Calculate: The reactance of the capacitor. The current flowing in the capacitor. Draw a phasor diagram Sketch the capacitor voltage and current over one cycle. Summary This question belongs to electros ... Read More

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#### Calculation of Inductance and Resistance of an R-L Circuit

Question A voltage of 50 volts RMS at 50Hz is applied across a series R-L circuit. If the supply current is 2.7 amps RMS and the voltage across R is 34 volts RMS, calculate R and L. Summary This question belongs to electrostatics in physics and discusses about an R-L circuit and to calculate resi ... Read More

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#### Calculation of Circuit Impedance and Magnitude of Current of an R-C Circuit

Question A voltage of 24 V RMS at 400 Hz is applied to a series R-C circuit. If the resistance is 15 and the capacitance 40 F, determine: Circuit impedance Magnitude of current Phase angle between current and voltage current. Summary This question belongs to electrostatics in physics ... Read More

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#### Phasor Diagram that Shows Voltage across the Resistance and Voltage across the Inductance

Question Consider an ac signal applied to a series R-L circuit. Draw a phasor diagram showing the voltage across the resistance, the voltage across the inductance and the resultant circuit voltage. From the above result derive the power triangle Indicate on the diagram, true power P, reactive p ... Read More

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#### Impedance Phasor Diagram for A Series RLC Network

Question Consider a series RLC circuit where L = 25 H, C = 25.6nF and R= 1 . Draw the impedance phasor diagram for this series RLC network. Sketch the impedance as a function of frequency. Give the conditions for resonance and compute the resonant frequency in Hz. Compute the Q and bandwidth. ... Read More

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#### Circuit and Phasor Diagram of a Circuit and Conditions for Resonance

Question A capacitance of 1 F is connected in parallel with a 1mH inductance. The inductance has a series resistance of 1â„¦. Draw the circuit diagram. Draw the phasor diagram. State the conditions for resonance in this circuit. Compute the resonant frequency. Draw the circuit of a sim ... Read More

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#### Circuit and Phasor Diagram of an AC Electrical Machine

Question An AC electrical machine is connected to 400 volt RMS, 50 Hz supply. The supplied current is 42.5 amps, RMS, with a lagging power factor, PF = 0.7. Draw the circuit diagram. Draw the phasor diagram. Compute the capacitance required to bring the power factor to unity. Compute the new ... Read More

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#### Holzerâ€™s Method

Question Explain holzer’s method? Summary: This question belongs to holzer’s method in physics. ... Read More

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#### Critical Speed of a Rotating Shaft

Question Explain critical speed of a rotating shaft? Summary: This question belongs to critical speed of a rotating shaft in physics. ... Read More

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#### Self-excited Vibration

Question Define self-excited vibration? Summary: This question belongs to self-excited vibration of a SHM in physics. ... Read More

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#### Orthogonality Principle

Question Explain orthogonality principle? Summary: This question belongs to orthogonality principle in SHM. ... Read More

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#### Matrix Iteration Method in SHM

Question Define matrix iteration method? Summary: This question belongs to matrix iteration method in SHM ... Read More

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