1. The property of coil by which a counter e.m.f. is induced in it when the current through the coil changes is known as A. Self-inductance B. Mutual inductance C. Series aiding inductance D. Capacitance Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
2. Which circuit element(s) will oppose the change in circuit current? A. Resistance only B. Inductance only C. Capacitance only D. Inductance and capacitance Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
3. Which of the following circuit elements will oppose the change in circuit current? A. Capacitance B. Inductance C. Resistance D. All of the above Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
4. In case all the flux from the current in coil 1 links with coil 2, the coefficient of coupling will be A. 2.0 B. 1.0 C. 0.5 D. Zero Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
5. Two 300 uH coils in series without mutual coupling have a total inductance of A. 300 uH B. 600 uH C. 150 uH D. 75 uH Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
6. Which of the following is not a unit of inductance? A. Henry B. Coulomb/volt ampere C. Volt second per ampere D. All of the above Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
7. Which of the following is unit of inductance? A. Ohm B. Henry C. Ampere turns D. Weber/metre Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
8. An open coil has A. Zero resistance and inductance B. Infinite resistance and zero inductance C. Infinite resistance and normal inductance D. Zero resistance and high inductance Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
9. The self inductances of two coils are 8 mH and 18 mH. If the coefficient of coupling is 0.5, the mutual inductance of the coils is A. 4 mH B. 5 mH C. 6 mH D. 12 mH Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
10. Reversing the field or the current will reverse the force on the conductor. A. Yes B. No Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
