If a section of an electric circuit is as shown, then applying Kirchhoff's first law gives: 12 Is inillm 020 O h+ l3 + Is = l2 + l4 Oh+2+l4+I3 = I5 Oh+3+l4 12 + Is h+2+ Is l3 + l4 O h = 12 + l3 + l4 + 15 Clear my choice
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- For the circuit shown below, =20V , L = 4.0 mH, and R = 5.0 . After steady state is reached with S1 closed and S2 open, S2 is closed and immediately thereafter (at t = 0) S1 is opened. Determine (a) the current through L at t = 0, (b) the current through L at r = 4.0 x 10-4 s, and (c) the voltages across L and R at t = 4.0 x 10-4 s.In the given circuit, R1 = 6 Ω, R2 = 7 Ω, R3 = 6 Ω, and R4 = 7 Ω. Find Req.A scientist just bought a very cool magnet, and would like to measure it’s strength. She takes a stripof copper with width 3.0cm, and a rectangular cross-section of 0.004m^2 and runs a current of 0.5Athrough it. She knows copper has a free charge density of 8.491× 10^28 m−3. She holds the magnetnear the strip, and measures a voltage across the sides of the strips, and her voltmeter reads 11.2 nV-what is the strength of her magnet?
- Useful constants: k=9.00×109 N.m2/C2 ε0= 8.85×10-12 C2/N.m2 µ0=4π×10-7 T.m/A mp=1.67×10-27 kg me=9.11×10-31 kg e=1.6×10-19 C g=10.0 m/s2 --------- A silver wire of radius r= 0.5 mm and resistance 0.06 Ω is connected to a voltage source of 3.1 mV. The density of the free charge carriers is n=1.59×1028 m-3. Find the drift speed of the free charges (in μm/s).Calculate the hours a 25.0 Watt light bulb will burn when powered by a 13.0 g lead storage battery at a constant voltage of 1.5V. 1 Watt = 1 J/s. Pb(s) →Pb+2(aq) + 2e-1 Group of answer choices 0.0504 hours 0.202 hours 0.101 hours 9.91 hours 4.96 hours 27.1 hoursThe current, I, is 2A through R2=4Ω and V1=6.00V. Determine the current through R1 =2Ω and R3=5Ω and the voltage V2 for the given circuit.
- In the given circuit, R1 = 4 kΩ, R2 = 3 kΩ, R3 = 8 kΩ, and R4 = 8 kΩ. Find Req.In the circuit below, R1 = 1 Ω, R2 = 2 Ω, R3 = 3 Ω. Which resistor/s carry(ies) the greatestcurrent? Choices: R1.R3.R1 and R2.R1, R2, and R3.Given: V1= 5V V2= 9V R1 = 1 Ohm R3 = 3 Ohm Compute for the current (IR1 & IR3) and voltage (VR1 & VR3) using Kirchhoff's Rule.
- If you work out enough to visibly increase the diameter of your biceps, will this increase or decrease your susceptibility to electric shock? Explain.Which one of the following combinations of units is equivalent to the ohm? A. V/C B. A/J C. J/s D. J×s/C2 E. W/ACompute for the total energy of the entire circuit. Select one: a. 128.42 micro Joules b. 352.12 micro Joules c. 273.56 micro Joules d. 478.08 micro Joules