Page 333 - General Knowledge

GENERAL KNOWLEDGE 2019

107. Resistance of a conductor is inversely proportional to:
A. Current
B. Its length
C. Its area of cross-section
D. Potential difference

108. The resistance of a wire is inversely proportional to the:
A. Four times of its diameter
B. Square of its diameter
C. ¼ of its diameter
D. 1/3 of its diameter

109. What will be the resistance of a wire if its diameter is tripled?
A. 1/2
B. 1/4
C. 1/3
D. 1/9

110. Resistance of which of the following is unaffected by temperature?
A. Manganin
B. Constantan
C. Nichrome
D. All of the above

111. A continuous conducting path consisting of wires and other resistances and a
switch, between the two terminals of a battery along which an electric current flows is
called:
A. Resistivity
B. Circuit
C. Electric power
D. Insulator

112. Which of the following is a part of electrical circuit?
A. Battery
B. Fixed resistance
C. Connecting wires
D. All of the above

113. The resistance which can be changed as desired is called:
A. Wire joints
B. Fixed resistance
C. Variable resistance
D. A switch

114. Which of the following is a current-detecting instrument?
A. Voltmeter

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