26.

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A point at which two or more elements have a common connection is called :

(^) branch (B) link

(C) node (D)_ tree
For a low pass filter, the attenuation is zero throughout the frequency range for which the
characteristic impedance is :

(^) Purely inductive (B) Purely resistive

(C) Purely capacitive (D) Capacitive and inductive

A balanced 3 phase star connected load with Ip =5 < 0, Ty = 5 < -120, Ip = 5 < 120. The
zero sequence current will be :

(A) 5A (B) 10A
(C) OA (D) None of the above

The flux density between two plates separated by mica of relative permittivity 5 is
8.85 u C/m? voltage gradient between the plates is :

(0) 200 kV/m (B) 20kV/m
(0) 0.2kV/m ൯൩) 2kV/m
A straight conductor of 1 m carrying a current of 30 A lies perpendicular to a uniform
magnetic field of flux density 0.8 T. The magnitude of force experienced by the conductor is :
(A) ON (B) 24N
(0) 10N (D) 1514

A 1-MHz plane wave propagating in fresh water. At this frequency, losses in water are

negligible, in water, ‏می‎ =1 and at 1 MHz, €,’= 81. The velocity of propagation is :
(^) 3x10° m/s (B) 0.3x10' m/s
(0 2x10° m/s (D) 3.3x 107 m/s

The direction of the Poynting vector indicates the direction of the instantaneous
at a point.

(^) Power flow (8) Electric field
(C) Magnetic field (D) None of the above

A capacitor uses a dielectric 0.04 mm thick and operates at 30 V. The electric field strength
across the dielectric at this voltage is :

(A) 15 KV/m (8) 30KV/m
(© 75 एषण 0) 750 KV/m

7 131/2023
[P.T.0.]