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1 Load saturation characteristic of a d.c. generator given relation between
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A transformer having 1000 primary turns is connected to a 250-V a.c. supply. For a secondary voltage of 400 V, the number of secondary turns should be
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Irrespective of the supply frequency, the torque developed by a SCIM is the same whenever is the same.
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At relatively light loads, transformer efficiency is low because
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The slight curvature at the lower end of the O.C.C. of a self-excited d.c. generator is due to
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A capacitor consists of two
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Let the transfer function of network be H(f) = |H(f)|eiθ(f)=2e−j4πf|H(f)|eiθ(f)=2e−j4πf
If a signal x (t) is applied to such a network, the output y (t) is given by
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If e1e1 = A sin ωt and e2e2 = B sin (ωt - φ), then
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The bonding forces in compound semiconductors, such as GaAs, arise from
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The relation between electric intensity E, voltage applied V and the distance d between the plates of a parallel plate condenser is
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A fully controlled natural commutated 3-phase bridge rectifier is operating with a firing angle α = 30°. The peak to peak voltage ripple expressed as a ratio of the peak output dc voltage at the output of the converter bridge is
Equations
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A power system consist of 300 buses out of which 20 buses are generator bus, 25 buses are ones with reactive power support and 15 buses are the ones with fixed shunt capacitors. All the other buses are load buses. It is proposed to perform a load flow analysis in the system using Newton-Raphson method. The size of the Newton-Raphson Jacobi-an matrix is
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A coil having a resistance of 10 ? and inductance of 31.8 mH is connected to 230V, 50 Hz supply. The circuit current will be
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A coil having a resistance of 10 ? and inductance of 31.8 mH is connected to 230V, 50 Hz supply. The circuit current will be
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In the output of a normal monochrome receiver video detector voltages, which are not found, are-
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Diversity reception in used to-