Skin Effect Causes - MCQs with AnswersQ1. On what factors does the skin effect depend upon?
a. Cross section of the conductors.
b. Supply frequency.
c. Permeability of the conductor.
d. All of these.View Answer / Hide AnswerQ2. What are the line constants in a transmission line?
a. Resistance and series conductance only.
b. Series and shunt conductance.
c. Resistance, inductance and capacitance.
d. Resistance, inductance, capacitance and shunt conductance.View Answer / Hide Answer
Q3. What is the cause of skin effect?
ANSWER: d. Resistance, inductance, capacitance and shunt conductance.
a. Supply frequency.
b. Self inductance of conductor.
c. High sensitive material in the centre.
d. Both (a) and (b)View Answer / Hide Answer
Q4. The conductor carries more current on the surface in comparison to its core. What is this phenomenon called?
ANSWER: d. Both (a) and (b)
b. Ferranti effect.
c. Skin effect.
d. Proximity effect.View Answer / Hide AnswerQ5. By using which conductor is the skin effect reduced?
a. Bundled conductors.
b. Stranded conductors.
c. Hollow conductors.
d. Solid conductors.View Answer / Hide Answer
Q6. In which of the transmission systems is the skin effect observed?
ANSWER: b. Stranded conductors.
a. Cable carrying dc current.
b. DC transmission line only.
c. AC transmission line only.
d. DC as well as AC transmission lines.View Answer / Hide Answer
Q7. Skin effect in a conductor is proportional to
ANSWER: c. AC transmission line only.
a. (Diameter of conductor)1/2
b. Diameter of conductor.
c. (Diameter of conductor)2
d. (Diameter of conductor)4View Answer / Hide Answer
Q8. Skin effect is negligible for what supply frequency and for what diameter?
ANSWER: c. (Diameter of conductor)2
a. < 50 Hz and < 1 cm.
b. < 50 Hz and > 1 cm.
c. > 50 Hz and < 1 cm.
d. > 50 Hz and > 1 cm.View Answer / Hide Answer
ANSWER: a. < 50 Hz and < 1 cm.