ECE :: Exam Questions Paper
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The circuit shown in the figure converts
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Using 4-bit numbers (n = 4) if k = (0011)2 how is k expressed in 2's complement.
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Which of the following options is the closest in meaning to the world below:
Circuitous -
A sphere with charge Q was placed in, but not touching a larger hollow sphere. If there is any charge initially on the outer sphere; to remove it the outer sphere was earthed momentarily, and then the inner sphere was removed. The charge remaining on the outer sphere was then measured. This charge was found to be __________ to the charge on the inner sphere.
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Two products are sold from a vending machine, which has two push buttons P1 and P2. When a button is pressed, the price of the corresponding product is displayed in a 7-segment display. If no buttons are pressed, '0' is displayed, signifying 'Rs' .0'. If only P1 is pressed, '2' is displayed, signifying 'Rs. 2'.
If only P2 is pressed, '5' is displayed, signifying 'Rs. 5'.
If both P1 and P2 are pressed, 'E' is displayed, signifying 'Error'. The names of the segments in the 7-segment display, and the glow of the display for '0', '2', '5' and 'E', are shown below.
Consider- push button pressed/not pressed is equivalent to logic 1/ 0 respectively
- a segment a to g are considered as functions of P1 and P2, then which of the respectively.
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The following series RLC circuit with zero initial conditions is excited by a unit impulse function δ(t).
For t > 0, the output voltage Vc (t) is
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