ONLINE MCQ EE-RESISTANCE AND OHM`S LAW 4


Q31. Which of the following quantities
remain the same in all parts of a series
circuit?
 A.  Voltage  B.  Current
 C.  Power  D.  Resistance

 

Q32. Voltage dependent resistors are usually
made from
 A.  charcoal  B.  silicon carbide
 C.  nichrome  D.  graphite

 

Q33. The resistance of two wires is 25 ω
when connected in series and 6 ω when
joined in parallel. The resistance of
each wire is
 A.  10 ω, 15 ω  B.  20 ω, 30 ω
 C.  5 ω, 10 ω  D.  10 ω, 20 ω

 

Q34. Varistors are
 A.  insulators  B.  non-linear resistors
 C.  carbon resistors  D.  resistors with zero temperature coefficient

 

Q35. Resistance of a material always
decreases if
 A.  temperature of material is decreased  B.  temperature of material is increased
 C.  number of free electrons available
become more
 D.  none of the above is correct

 

Q36. Voltage dependent resistors are used
 A.  for inductive circuits  B.  to suppress surges
 C.  as heating elements  D.  as current stabilizers

 

Q37. In a circuit a 33 ω resistor carries a
current of 2 A. The voltage across the
resistor is
 A.  33V  B.  66V
 C.  80 V  D.  132V

 

Q38. In a series circuit with unequal
resistances
 A.  In a series circuit with unequal
resistances
 B.  the lowest resistance has the
highest voltage drop
 C.  the lowest resistance has the
highest current
 D.  the highest resistance has the
highest voltage drop

 

Q39. Specific resistance of a substance is
measured in
 A.  ω/m  B.  ω/m2
 C.  ω-m  D.  m/ω

 

Q40. With three resistances connected in
parallel, if each dissipates 20 W the
total power supplied by the voltage
source equals
 A.  10 W  B.  20 W
 C.  40 W  D.  60 W

 

                       Part 1 Part 2 Part 3  Part 4   Part 5  Part 6  Part 7

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ONLINE MCQ EE-RESISTANCE AND OHM`S LAW 3

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