Consider three voltmeters A, B, and C with resistance R, 1.51 across the points X and Y, the voltmeter readings are VA. V8 B) A) OA VA= V8 = Vc OB V. Ve= Yc
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- In the given circuit, the resistances of each resistor is 5 Ohm. The ideal batteries have EMFS E1= 9V and E2 = 17 V. What is the potential at point P?If you wish to take a picture of a bullet traveling at 500 m/s, then a very brief flash of light produced by an RC discharge through a flash tube can limit blurring. Assuming 1.00 mm of motion during one RC constant is acceptable,and given that the flash is driven by a 600-μF capacitor, what is the resistance in the flash tube?In the circuit below, the capacitor starts out uncharged. The resistance is R = 118 Ω, capacitance is C = 0.0647 F, and the battery emf is 16.7 V. What is the charge (Q) on the capacitor at a time of t = 3.72 seconds after the switch is closed?
- Consider an electric diagram in the figure. When the switch in the circuit on the right is open, the voltmeter V reads 3.78 V. When the switch is closed, the voltmeter reading drops to 3.45 V, and the ammeter A reads 8.83 A. What is the battery internal resistance r (in Ω)?If a voltmeter that is ideal is connected to measure the voltage across the 83.0-kΩ resistor, what is its reading? Enter the absolute value of the reading. (in image, x = 8.20 V)For the circuit shown in Fig.1 below, C1 = 5μF, C2 = 4μF, C3 = 6μF and ∆V = 65V. Find:(a) the equivalent capacitance, (b) the charge on each capacitor and (c) the potential differenceacross each capacitor.Figure 1: Problem 2.Problem 3For the circuit shown in Fig.2 below, determine the resistance R such that the current in R is0.50 A, with the sense from a to b.Figure 2: Problem 2.Problem 4A straight wire of length 0.40 m, carrying current I = 7.0 A is oriented at angle θ = 27◦ toa uniform magnetic field B = 1.2 T. The field is in the positive x-direction. Determine themagnitude and direction of the magnetic force on the wire.1
- An uncharged capacitor and a resistor are connected in seriesto a source of emf. If ε = 9.00 V, C = 20.0 µF, and R = 1.00 x102 Ω, find (a) the time constant of the circuit, (b) the maximumcharge on the capacitor, and (c) the charge on thecapacitor after one time constant.In the figure R1 = 2.11 Ω, R2 = 5.01 Ω, and the battery is ideal. What value of R3 maximizes the dissipation rate in resistance 3?If E = 7.50V and r=0.45Ω, find the minimum value of the voltmeter resistance RV for which the voltmeter reading is within 1.0% of the emf of the battery.
- A real battery consists of an emf, ?= 9.00V and has an internal resistance, r = 1.50Ω. The battery is connected in series with an ammeter, a load resistor of R = 3.00Ω, and an open switch. Determine the potential difference measured by the voltmeter.The capacitance in the curcuit is C = 0.3μF, the total resistance is R=20kQ and the battery emf is 12 V. Determine the time is takes for the charge the capacitor could acquire, to reach 99% of max value.A capacitor with a capacitance of 3.5 uF is initially uncharged. It is connected in series with a switch of negligible resistance, a resistor with a resistance of 10.5 kOhm, and a battery that has a potential difference of 105V. (a) Immediately after the switch is closed, what is the voltage drop VC, in volts, across the capacitor? (b) Immediately after the switch is closed, what is the voltage drop VR, in volts, across the resistor? (c) Immediately after the switch is closed, what is the current, in amperes, through the resistor? (d) Find an expression for the time after the switch is closed when the current in the resistor equals half its maximum value. (e) What is the charge Q, in microcoulombs, on the capacitor when the current in the resistor equals one half its maximum value.