(a) (b) (c) Figure 13.3 (a) Closing the switch of circuit 1 produces a short-lived current surge in circuit 2. (b) If the switch remains closed, no current is observed in circuit 2. (c) Opening the switch again produces a short-lived current in circuit 2 but in the opposite direction from before.
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- 5) In pn junction, the current flow in forward biased if the a) P side connected to the positive of source only . b) N side connected to the negative of source only . c) P side connected to the positive and N side connected to the negative of the source only. d) None.MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A light bulb is connected to a 60-V wall socket. The current in the bulb depends on the time t according to the relation I = (2.121 A) sin[(628.0 Hz)t]. (a) What is the frequency of the alternating current? 100 Hz (b) Determine the resistance of the bulb's filament? 75.66 (c) What is the average power delivered to the light bulb? 47.58 X W Additional Materials eBook 940 2 FEB tvℇ = 100 V, R = 20.0 Ω, and L = 100.0 mH. The switch is closed att = 0. (a) What is the time constant of the circuit shown below? (b) Find the currentat t = 0.050 sec, (c) at what time the current is 40% of its maximum value?
- 7) A circuit contains a 9 V battery, a 5 MQ resistor, a 10 H inductor, and a switch. When the switch is closed, what isthe current in the circuit after 1 usec?5) In the circuit below the currents are named la la, and le The current direction is delemined by the source (out of positive terminal) in the middle and nght branches and is clockwise in the left branch. A flows in the left branch of the circuit ls flows in the middle branch of the circut Ic flows in the nght branch of the circuit When applying KVL. R2 R3 transverse the locp in a Clockwise direction voilage drops are nogative labcl the voltage across the resistors with the sae numeric subscrpt.as the resistor Redraw the circut showno current diretons and polantes of the vortage across 1he resistors,Only question 12
- Find the current across the resistor 72 in Ampere while the switch S is closed for a long time. 212 B) 213 C) D) 18 2 162 E) HH 792 -m (0) SV 4 V 245210:Which of the followings is the current on the resistor R₂ as a function of time 1₂(t) after the switch is closed? R₁ = 3R, R₂ = 4R, C₁ = C₁ C₂ = C a) 2R e -t/4RC b) =/e-t/2RC c)-e-t/12RC 3R d) e-t/8 RC 4R 2V e) -e-4t/3RC R ww R₂ I 5 h R₁ + V