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R G PUBLICATION-ALTERNATING CURRENT-EXERCISE
- The frequency of a.c. is doubled. How do XL and XC get affected?
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- If L and R reperesnt respectively the inductance and resisitance the d...
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- What is eddy current? State two applications of eddy current.
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- Show that the mean value of complete G.C. cycle is zero.
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- In a series LCR circuit in which R= 3Omega, L=25mH and C=800muF a sinu...
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- In a series LCR circuit in which R= 3Omega, L=25mH and C=800muF a sinu...
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- What is step up and step down transformer? To transfer electric energy...
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- Describe in brief the concept of displacement.
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- Find the peak current in the circuit given below.
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- what is power factor of an L-C-R circuit? Explain on the basis of powe...
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- Why is electrical energy transmitted at high voltage from a distance p...
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- An AC source of emf E=200sin(100 pit) is connected across an inductor ...
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- An AC source of emf E=200sin(100 pit) is connected across an inductor ...
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- An AC source of emf E=200sin(100 pit) is connected across an inductor ...
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- State the working principle of a transformer. What is hysteresis loss ...
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- Briefly explain the working of A.C. generator.
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- An a.c. source of e.m.f. Vmsinwt is connected with a circuit which con...
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- A 40W-110V bulb is to be used in 220V-50Hz AC. Calculate the inductanc...
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- Explain the physical proces on the basis of which the r.m.s value of A...
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- A charged capacitor is connected to an inductor at an instant of time ...
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