Related Questions

Which of the following affect greatly the resistivity of electrical conductors?
A Composition
B Pressure
C Size
D Temperature
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
Strain gage uses an electrical conductor wire, which when elastically stretched increases in length and reduces in diameter. Both these dimensional changes result in __________ in the electrical resistance of the wire.
A No change
B Decrease
C Increase
D Exponential decrease
The component that forms the electrical connection between the rotating coil of wire in a motor and the external source of electrical energy is called the:
A rotor
B armature
C battery
D commutator
E None of the above
To insure that everyone understands what the electrical symbols represent it is customary to include a ________ on the electrical sheet.
A List
B Part number
C Electrical legend
D Electrical layer
What table shows the electrical state of a digital circuit's output for every possible combination of electrical states in the inputs?
A Function table
B Truth table
C Routing table
D ASCII table
E None of the above
Which of the following has low resistivity?
A Nichrome
B Glass
C Ebonite
D Diamond
Which of the following has highest resistivity?
A Mica
B Paraffin wax
C Air
D Mineral oil
Which of the following materials has the least resistivity ?
A Zinc
B Lead
C Mercury
D Copper
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

Next steps