Related Questions

Which of the following has low resistivity?
A Nichrome
B Glass
C Ebonite
D Diamond
Which of the following materials has the least resistivity ?
A Zinc
B Lead
C Mercury
D Copper
Which of the following has the lowest electrical resistivity?
A Graphite
B Fireclay
C Alumina
D Zircon
Thermistor, which has high temperature co-efficient of resistivity, is used as the sensing element in resistance thermometer. It is a/an
A Insulator
B Conductor
C Solid semi-conductor
D Liquid semi-conductor
On which of the following factors does the resistivity of a material depend ?
A Resistance of the conductor
B Area of the conductor section
C Length of the conductor
D All of the above
Which of the following affect greatly the resistivity of electrical conductors?
A Composition
B Pressure
C Size
D Temperature
Which of the following factors affect resistivity of metals ?
A Age hardening
B Alloying
C Temperature
D Cold work
E All of the above
Thermisters which have a very high temperature co-efficient of resistivity belong to the class of solid called
A Dielectrics
B Insulators
C Semi conductors
D Conductors
তাপমাত্রা বৃদ্ধিতে অর্ধ-পরিবাহীর রোধ(Resistivity)-
A হ্রাস পায়
B বৃদ্ধি পায়
C অপরিবর্তিত থাকে
D কোনটিই নয়
The rule that resistivity of conductors can be separated into two parts viz. temperature independent and temperature dependent is known as
A Matthiessen’s rule
B Debye rule
C Curie rule
D Onne’s rule

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