TAILIEUCHUNG - physics_test_bank_split_31

Tham khảo tài liệu 'physics_test_bank_split_31', khoa học tự nhiên, vật lý phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Simpo PDF Merge and Split Unregistered Version - http 69. Immediately after switch S in the circuit shown is closed the current through the battery is A. 0 B. V0 R1 C. V0 R2 D. Vo R1 R2 E. V0 R1 R2 i M ans D 70. A inductor and a inductor are connected in series. The equivalent inductance is A. mH B. mH C. D. mH E. mH ans E 71. A inductor and a inductor are connected in series and a time varying current is established in them. When the total emf of the combination is 16 V the emf of the larger inductor is A. B. C. D. 28V E. 36V ans B 72. A inductor and a inductor are connected in parallel. The equivalent inductance is A. mH B. mH C. D. mH E. mH ans A Chapter 30 INDUCTION AND INDUCTANCE 451 Simpo PDF Merge and Split Unregistered Version - http 73. A inductor and a inductor are connected in parallel. When the total emf of the combination is 16 V the rate of change of the current in the larger inductor is A. X 103 A s B. X 103 A s C. X 103 A s D. X 103 A s E. X 103 A s ans B 74. An inductor with inductance L and an inductor with inductance 2L are connected in parallel. When the rate of change of the current in the larger inductor is 1200 A s the rate of change of the current in the smaller inductor is A. 400 A s B. 1200 A s C. 1600 A s D. 2000 A s E. 2400 A s ans E 75. The stored energy in an inductor A. depends in sign upon the direction of the current B. depends on the rate of change of current C. is proportional to the square of the inductance D. has units J H E. none of the above ans E 76. An inductance L and a resistance R are connected in series to an ideal battery. A switch in the circuit is closed at time 0 at which time the current is zero. The energy stored in the inductor is a maximum A. just after the switch is closed B. at the time t L R after the switch is closed C. at the time t L R .

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