The name of the famous mathematician who is credited with discovering the total value of the very first 100 natural numbers is
'Ophthalmia' is related to 'Eye' in the same way as 'Rickets' is related to:
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6 times of a fraction is greater than 7 times of its reciprocal by 11. What is the fraction?
Direction: In a family, there are six members P, Q, R, S, T, U, and V are a married couple. P being the male member. S is the only son of R, who is the brother of P. T is the sister of S. Q is the daughter-in-law of U, whose husband has died.
Q. How is U related to P?
A, B and C can complete a piece of work in 9, 12 and 18 days respectively. They started working together, but A left the work before 4 days of its completion. B also left the work 2 days after A left. In how many days was the work completed?
When price of sugar is increased by 35% a person gets 14 kg less sugar in Rs 160. Find the new price of sugar per kg?
'Forest' is related to 'Vivarium' in the same way as 'sea' is related to:
What is the discount percentage offered on a book having marked price Rs 2150 being sold at Rs 1892?
Direction: Study the following information carefully and answer the given questions besides.
M, N, O, P, Q, R, S and T are sitting around a circular table and all are facing the centre of the table. M is sitting fourth to the right of N. P is sitting second to the left of N. Q is sitting third to the right of S. T is sitting second to the left of O. S is not sitting beside P. O is not sitting beside M.
Q. Who among the following sits exactly opposite to Q?
Which of the following is true with respect to Schottky diode?
Which of the distribution system is used for balanced loads?
A 50 Hz, 8-pole, 3-phase induction motor has full-load slip of 4%. The rotor resistance and standstill reactance per phase are 0.01 Ω and 0.1 Ω respectively. The ratio of maximum torque to full-load torque is
A 10 V source of internal resistance 5Ω is connected to a load of through a transformer. For maximum power transfer, the turns ratio of the transformer should be
The magnetic flux density in an air-cored coil is 10-2 Wb/m2 With a cast iron core of relative permeability 100 inserted, the flux density will become
A change of 5% in supply voltage to a 3 phase induction motor will produce the appropriate change in the torque of-
Which of the following semi-conductor parameters vary with temperature?
i) Intrinsic concentration (ηi)
ii) Mobility (μ)
iii) Conductivity (σ)
iv) Energy gap (EG)
A certain R-L series combination is connected across a 50 Hz single-phase ac supply. If the instantaneous power drawn was found to be negative for 2 milliseconds in one cycle. The power factor angle of the circuit must be____
In a power plant, a reserve generating capacity which is not in service but is in operation is known as-
What will happen when the centrifugal switch fails to close?
It is known that the potential difference across a 6 Ω resistor is 48 V. The total current i
entering the circuit is-
A single phase transformer has 400 primary and 1000 secondary turns. The net cross-sectional area of the core is 60 cm2 If the primary is connected to 500 V, 50 Hz source, the peak value of flux density in the core is
The open loop control system is one in which __________.
The calculation of short circuit current enables us-
Two lossy capacitors with equal capacitance values and power factors of 0.01 and 0.02 are in parallel, and the combination is supplied from a sinusoidal voltage source. The power factor of the combination is-
The inductance of a moving iron instruments is given by L=100+4θ-θ2mH. If spring constant = 8×10-3 then find deflection for a current of 4A –