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An 12µF capacitor is connected in series to a 0.5M? resistor across the dc voltage supply of 240V.
verify:
(a) Time constant
(b) Initial charging current
(c) Time for capacitor voltage increase to 150V
(d) The current flowing through the capacitor after 4 seconds
(e) Energy stored in the capacitor when it is fully charged
(f) Sketch the current and voltage (IV) curve to show the process of charging the capacitor.
How does a diode work! what is its main formulas?
a dc generator has 300 turns in each field coil. the flux per pol is 0.1 wb. find the average value of EMF inducet in field winding in the flux decays to zero in 0.3 second?
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how much and what to write it is of 30 marks
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