Disruptive corona begins in smooth cylindrical conductors in air at NTP, if electric field intensity at the conductor surface goes up to
An 8085 microprocessor based system uses a 4K × 8 bit RAM whose starting address is AA00 H. The address of the last byte in this RAM is
Voltage gain of the op-amp circuit \(\left ( \frac{V_{o}}{V_{i}} \right )\) is _______.
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Solution
The rotor power output of a 3-phase induction motor is 15 kW and corresponding slip is 4%. The rotor copper loss will be
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Solution
Rotor power output =15 kW
Slip, s= 0.04
If applied voltage of a certain transformer is increased by 50% and frequency is reduced to 50% (assuming that magnetic circuit remains unsaturated), then maximum core flux density will
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Solution
The Laplace transform of unit impulse function d(t– a) is
The value of |k| such that the rank of the matrix
is 3 is _________.
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Solution
The probability that student passes maths exam is 0.9, given that he studied. The probability that he passes the exam without studying is 0.2. Assume the probability that the student studies for all exams is 0.75. What is the probability that he passes the maths exam?
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Solution
Probability of math pass students (studied) = 0.9
Probability of maths pass students (without study) = 0.2
Probability of student (studied for all exams) = 0.75
Probability of student (without studies)
= 1 – 0.75= 0.25
Probability (Student studied and passed)
= 0.75 × 0.9
Probability(Student passed without studying)= 0.25 × 0.2 Required probability= 0.9 × 0.75 + 0.2 ×0.25 = 0.725
The solution of dy⁄dx = 4x3e-y with y(1) = 0, is
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Solution
Laplace transform of the function f(t) is F(s).u(t) represent sunit step function. The inverse Laplace transform of e–s F(s) is