Electrical Engineering Mcqs

With rise in temperature the resistance of semi-conductors_________________?

• (A)  decreases
• (B)  increases
• (C)  first increases and then decreases
• (D)  remains constant

Answer

Submitted By :Ali Uppal

With rise in temperature the resistance of pure metals______________?

• (A)  increases
• (B)  decreases
• (C)  first increases and then decreases
• (D)  remains constant

Answer

Submitted By :Ali Uppal

The resistance of a conductor varies inversely as___________?

• (A)  length
• (B)  area of cross-section
• (C)  temperature
• (D)  resistivity

Answer

Submitted By :Ali Uppal

Conductance is reciprocal of____________?

• (A)  resistance
• (B)  inductance
• (C)  reluctance
• (D)  capacitance

Answer

Submitted By :Ali Uppal

The property of a conductor due to which it passes current is called___________?

• (A)  resistance
• (B)  reluctance
• (C)  conductance
• (D)  inductance

Answer

Submitted By :Ali Uppal

Out of the following which is an insulating material____________?

• (A)  Copper
• (B)  Gold
• (C)  Silver
• (D)  Paper

Answer

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Out of the following which is not a poor conductor__________?

• (A)  Cast iron
• (B)  Copper
• (C)  Carbon
• (D)  Tungsten

Answer

Submitted By :Ali Uppal

The substances which have a large number of free electrons and offer a low resistance are called____?

• (A)  insulators
• (B)  inductors
• (C)  semi-conductors
• (D)  conductors

Answer

Submitted By :Ali Uppal

Which of the following statement is true both for a series and a parallel D. C. circuit?

• (A)  Elements have individual currents
• (B)  Currents are additive
• (C)  Voltages are additive
• (D)  Power are additive

Answer

Submitted By :Ali Uppal

Two resistors are said to be connected in series when___________?

• (A)  same current passes in turn through both
• (B)  both carry the same value of current
• (C)  total current equals the sum of branch currents
• (D)  sum of IR drops equals the applied
• (E)  m.f.

Answer

Submitted By :Ali Uppal