Inductance(General Knowledge > General Science ) Questions and answers for exam Preparation

Question 1. A time-delay relay that uses an RC timing circuit is called a(n)_________

Answer: Option D. -> motor-driven, time-delay relay

Question 2. Which of the following has the largest inductance?

A solenoid of radius 3 cm, length 1 cm, and with 100 turns of wire per centimeter
A solenoid of radius 2 cm, length 2 cm, and with 100 turns of wire per centimeter
A solenoid of radius 1 cm, length 1 cm, and with 200 turns of wire per centimeter
A solenoid of radius 2 cm, length 5 cm, and with 100 turns of wire per centimeter

Answer: Option D. -> A solenoid of radius 2 cm, length 5 cm, and with 100 turns of wire per centimeter

Question 3. A 10-turn ideal solenoid has an inductance of 4

Answer: Option D. -> 500 A/s

Question 4. Which of the following factors DOES NOT affect the self inductance of a coil?

Answer: Option A. -> The length of the coil

Question 5. An airplane with a wingspan of 60

Answer: Option C. -> 375 m/s

Question 6. A 10-turn ideal solenoid has an inductance of 3

Answer: Option C. -> 7.0 x 10^–4 Wb

Question 7. Which component opposes any change in current?

Answer: Option C. -> Inductor

Question 8. 1 Henry is equivalent to

Answer: Option B. -> V.s/A