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BASIC ELECTRICAL PRACTICE
Set 3
Set 3
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Q13549
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Calculate the value of resistance connected to the supply voltage of 100V and current through 4 A?
A
0.4 ohm
B
0.04 ohm
C
25 ohm
D
400 ohm
Q13550
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What is the S.I unit of specific resistance?
A
Ohm/cm
B
Ohm/metre<sup>2</sup>
C
Ohm-metre
D
Micro ohm/cm<sup>2</sup>
Q13551
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What is the specific resistance value of copper conductor?
A
1.72 micro ohm/cm<sup>2</sup>
B
1.72 micro ohm
C
1.72 ohm /cm<sup>2</sup>
D
1.72 micro ohmmeter
Q13552
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What is the effect in resistance of the conductor, if its diameter is doubled?
A
Increase to two times
B
Increase to four times
C
Decrease to half the value
D
Decrease to 1/4 th value
Q13553
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Which is directly proportional to the resistance?
A
Area of cross section
B
Length
C
Resistivity
D
Temperature
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