Related Questions

For the same secondary voltage, the output voltage from a centre-tap rectifier is ___________ than that of bridge rectifier
A twice
B thrice
C four time
D one-half
The PIV rating of each diode in a bridge rectifier is ___________ that of the equivalent centre-tap rectifier
A one-half
B the same as
C twice
D four times
The ratio of reverse resistance and forward resistance of a germanium crystal diode is about ___________
A 1 : 1
B 100 : 1
C 1000 : 1
D 40000 : 1
A crystal diode has forward resistance of the order of ___________
A kΩ
B Ω
C MΩ
D none of the above
The average marks of a student in 10 parers are 80. If the highest and the lowest scores are not considered, the average is 81 . If his highest score is 92. find the lowest.
A 55
B 60
C 62
D None of these
A forward biased pn junction diode has a resistance of the order of
A Ω
B kΩ
C MΩ
D None of the above
In a parallel circuit, the branch with the lowest resistance has the most current.
A True
B False
Which of the following resistive materials has the lowest temperature co-efficient of resistance ?
A Nichrome
B Constantan
C Kanthal
D Molybdenum
The dynamic resistance of a forward biased p-n diode
A Varies inversely with current
B Varies directly with current
C Is constant
D Is either constant or varies directly with current
An ammeter has a resistance of G ohms and range of I amperes. The value of resistance required in parallel to convert it into an ammeter of range nI is ___________.
A nG
B (n - 1)G
C $$\frac{{\text{G}}}{{{\text{n}} - 1}}$$
D $$\frac{{\text{G}}}{{\text{n}}}$$

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