Correct Answer:- Option-D
Question48:-Efficiency of a transformer is the ratio of
A:-Output power to input power
B:-Input power to output power
C:-Input current to output current
D:-Output current to input current
Correct Answer:- Option-A
Question49:-The basic unit of capacitance is
A:-Ohm
B:-Farad
C:-Henry
D:-Mho
Correct Answer:- Option-B
Question50:-The relationship between charge (Q), voltage (V) and capacitance (C) of a capacitor is
‏ل دعم‎

B:-C = QV
6-0۶۰
D:-C = ४०

Correct Answer:- Option-A
Question51:-Identify the instrument which is NOT used for measurement of capacitance
A:-Digital capacitance meter
B:-AC bridge
C:-RLC meter
D:-Kelvin bridge
Correct Answer:- Option-D
Question52:-The capacitive reactance Xc is given by
A:-2° Pi FC
8:-1/2 7
6-2 1756
D:-FC/2*Pi>
Correct Answer:- Option-B
Question53:-Current flowing through a capacitor is given by

#- ५४३६०"
ഡെ
ഥെ
0:-"५१२.९०

Correct Answer:- Option-C
Question54:-A semi conductor in its pure form is referred to as
A:-Intrinsic semiconductor
B:-Extrinsic semiconductor
:-Crystal semiconductor
D:-Doped semiconductor
Correct Answer:- Option-A
Question55:-The process of adding impurities to a pure semiconductor
A:-Diffusion
B:-Forming
C:-Etching
D:-Doping
Correct Answer:- Option-D
Question56:-The potential difference across a PN junction is referred to as
A:-Potential difference
-Barrier potential
C:-Reverse potential
D:-PN potential
Correct Answer:- Option-B
Question57:-When a germanium diode is connected in forward biased mode the voltage across the diode will be
A:-0.7 V
۷
:-Is equal to applied voltage