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The following three impedances are connected in series across a 40V, 20kHz supply:
(i) a resistance of 8,
(ii) a coil of inductance 130µHand5 resistance, and
(iii) a 10 resistor in series with a 0.25µF capacitor.
Calculate
(a) the circuit current,
(b) the circuit phase angle and
(c) the voltage drop across each impedance.
An open platform elevator is moving down a mine shaft.After the elevator has travelled 25m [from the top of the shaft]a stone is dropped from the top of the shaft .Find time taken
For the circuits shown in Figure the resistors show the internal resistance of the batteries. Find, in each case: (i) The total e.m.f. across PQ (ii) The total equivalent in
assignment
Example of like and unlike parallel forces
Define one newton
with the help of diagram explain the working of newton''s ring
Q. What percentage of a given radioactive substance will be left after 5 half -life periods? The residual part of radioactive substance = ( ½ ) 5 Therefore the percentage
Negative feedback principle: The idea that in a system where there are self-propagating conditions, those new conditions tend to act against earlier existing circumstances. Su
What is the luminous flux of a flashlight that provides an luminance of 145 lx to the surface of water when held 0.50 m above the water?
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