what is the Answer for question 8?What will be the current in the 9 ohms resistor 25 seconds after the switch has been opened? 7. Suppose the switch in the circuit shown has been closed for a very long time. What will happento the current in the 9 2 resistor the instant that the switch is opened?(A) It will immediately drop to zero.(B) The current will at first be the same (in magnitude anddirection) as when the switch was closed (thendecrease over time).9 V(C) The current will reverse direction, but will initially havethe same magnitude (which will then decrease over3 mHtime).(D) The current will remain in the same direction, but willsuddenly increase in magnitude (then decrease withtime).(E) The current will reverse direction and suddenly increase (then decrease with time).8.What will be the current in the 9 ohm resistor 25 seconds after the switch has been opened?

Inductor behaves as a simple wire So current in battery just before opening of switch=9V3ohm||9ohm=4…

Answered: 7. Suppose the switch in the circuit…

Similar questions

How much energy does a toaster use if it is rated at 1200 W and runs current for 2 minutes as it toasts slices of bread. At a price of $0.10 per kWhr, how much does it cost to toast a couple of slices of bread?
The power supply voltage is 48.0 V what is the current passing through the 1 ohm resistor?
please answer this question
An amplifier in a portable speaker is connected to a 15 V battery and has a resistance of 8.0 Ω.What is the power used by the amplifier?
A 12 volt car battery is being used to power a circuit with a total resistance of 0.5 Mega-ohm. a) What is the power (in watts) being used by this circuit? b) The circuit is switched on for exactly 27.3 days and then switched off. How much energy has the circuit used (in joules AND kilowatt-hours) in this time? c) If the current rate of hydro use is 10.1 cents per kilowatt-hour, how much would the use of this circuit contribute to your hydro bill (assuming that no other charges apply)?
What is the effective resistance of a car's starter motor when 150 A flows through it as the car battery applies 11.3 V to the motor?
When switch S in (Figure 1) is open, the voltmeter V of the battery reads 3.13 V. When the switch is closed, the voltmeter reading drops to 2.93 V, and the ammeter A reads 1.69 A. Assume that the two meters are ideal, so they don't affect the circuit. For related problemsolving tips and strategies, you may want to view a Video Tutor Solution of A source with a short circuit. Figure S V r E -ww+ R A 1 of 1 Find the emf. Express your answer in volts. E = Submit Part B r = Find the internal resistance r of the battery. Express your answer in ohms. Submit Part C Π| ΑΣΦ Request Answer R= | ΑΣΦ Request Answer Find the resis ance R. Express your answer in ohms. IVE| ΑΣΦ ? ? ? V Ω Ω
Three identical 100.0-W, 120-V lightbulbs are connected across a 120-V power source as shown in in the figure below. Assume that the resistance of each bulb is constant (even though in reality the resistance increases markedly with current). 120 V R₁ R₂ (a) Find the total power supplied by the power source. W = (b) Find the potential difference across each lightbulb. AV₁ AV₂ = AV₂ = Need Help? Read It R₂ V Master It
Consider the following circuit diagram. The potential difference across the battery is 40.0 volts, and it supplies a current of 5.00 amperes to the circuit. There is a current of of 2.70 amperes flowing through R1. Resistor R2 has a resistance of 5.50 ohms. What is the resistance of R3? Answer in ohms to two decimal places, but do not include units in your answer.
When switch S in the figure is open, the voltmeter V of the battery reads 3.10 V. When the switch is closed, the voltmeter reading drops to 2.97 V , and the ammeter A reads 1.69 A . Assume that the two Part A meters are ideal, so they do not affect the circuit. (Figure 1) Find the emf E. Express your answer in volts to three significant digits. ? E = V Figure 1 of 1 Submit Request Answer V Part B Complete previous part(s) Part C Complete previous part(s) Provide Feedback A
The graph below shows Voltage vs. Current of an unknown resistor. What is the resistance? Select the answer below that most closely matches your result. Ohm's Law in an Unknown Resistor 18 y = 22.265x + 0.1733 16 14 12 10 8 ... 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 Current (A) About 202 About 0.2N O About 0.05N O It's not possible to find resistance from this plot because the device is not ohmic. 00 4. 2. Voltage (V)