Di and 2 possible
Correct Answer:- Option-é
Question16:-A 10 V battery is connected to a5 A current source (Current enters at the positive terminal of the battery). Power absorbed by the battery and the current source are
‏مكنم‎ W, 50 W
B:-50 W, -50W
50-50 W
0:-50 W, 50 W
Correct Answer:- Option ®
Question 7:-Form factor of full rectified sinusoidal voltage is,
‏قتمدھ‎
‏چحدھ‎
‏دم‎
‎யப
‎Correct Answer:- Option ®
Question18:-A 10 KVA, 250/250 V single phase transformer has the test results as

O.C Test : 250 V, 0.8 A, 50 W_
S.C. Test : 60 V, 3 A, 45 W: Load KVA at maximum efficiency is

۸2۵
B:-50 KVA

۸ کی

6.25 KVA

Correct Answer:- Option-D

Question19:-A 7 KW, 400 V, three phase 50 Hz., 6 pole squirrel cage induction motor operates at 5% slip at full load, when rated voltage at rated frequency is applied. Assuming linear
T-S characteristics, No load speed (for torque 6 Nm) at half the rated voltage and rated frequency is

۸:0
‏جوجھ‎
‏دوم‎
‎णयता
‎Correct Answer:- Option-C

Question20:-For a synchronous motor, the counter em. Eb in magnitude will be
‘AcLess than the applied terminal voltage
B:-Equals the applied terminal voltage
(C-More than the applied terminal voltage
Di-Either less than or equal to or more than the applied terminal voltage
Correct Answer:- Option-D

‘Question21:-A conducting diode is reverse biased at time t = 1, .A measurement of current through the diode is made at three different time instants along the positive time axis at t
1 T,and 7, . Select the correct statement about the diode current.

AccThe current drops to zero at time t= 7, and continues as such at t = 7, and t= 7,

BeThe current reverses at t = 17, and reaches the reverse saturation current at time t = 7. where the interval 7, to 7 is called the transition time

ണ്ണ current drops to reverse saturation current at t = 1, and continues as such at time t = 7, and t= 17, where the interval 7, to 7; is called the storage time

D:"The current reverses at t = T and continues as such tll t = = 1, where the interval 7; to 7; is called the transition

time

'. and then reaches the reverse saturation current at time

Correct Answer: Option-D

Question22:-Assume a half-wave rectifier that uses a transformer with maximum voltage V,, . The peak inverse voltages of the half-wave rectifier with and without a capacitor fiter are
and _ respectively.

ಗ್ಗ Von
BV «Vy
CoV ga Vg
5:21 ‏پ2 پ‎

Correct Answer: Option-C

Question23:-A transistor used 85 an emitter follower has