battery Current (A) eanemeter Part A If the switch is closed, what will happen to the reading on the galvanometer? O The galvanometer will read a negative current O The galvanometer will read a negative current for a brief moment, then return to 0. O The galvanometer will read a positive current for a brief moment, then return to 0. O The galvanometer will read a postive current. o o o
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- Current Attempt in Progress Each resistor in the three circuits in the drawing has the same resistance R, and the batteries have the same voltage V. The values for R and V are 80 and 6.0 V, respectively. Determine the total power delivered by the battery in each of the three circuits. R www R R R wwwww wwwwww R R R R wwwww wwwwww V V Circuit B Circuit A R www PA= ... i R R [www F V Circuit CPart A A 3.4-mm-diameter wire carries a 18 A current when the electric field is 6.5×10-2 V/m What is the wire's resistivity? You may want to review (Pages 753 - 754). Express your answer in ohm-meters to two significant figures. να ΑΣφη ? N. m Submit Request AnswerP Performance Matters Welcome, Bertiana! ► || A Tools - Question 2 of 51 Submit Test 04.CFE.2003380.2003390.2003836.2003840.Phy... A cell phone will typically have a power output of 1.4 watts when playing a song that lasts for 300 seconds. If the electrical resistance of the cellphone is 400 Q, what is the total charge needed to play the song?
- PART (1) Assume capacitor is fully charged when switch is at position 'a' for about 10 minutes. The switch is changed to position 'b' at t= 0. What is the current in the circuit immediately after the switch is closed? Assume after some time, the current in the circuit is 80.0 mA when the switch is at position 'b'. Can you find, what will be that time? 9.0 V 부 Paragraph a itur b 1.0 με PART (II) Assume a magnetic field of 5.2 T present inside the cyclotron. An electron enters the cyclotron with speed of 2.0 x 107 m/s. What is the radius of the electron's orbit just before they exit from the cyclotron. BI U A/ 10 Ω E✓ E GO + vThe resistance of each brake lightbulb n an automobile is 8.0 use the fact that cars have 12-v electrical systems to compute the current that flows in each bulb if they are connected in series. (For simplicity assume that the circuit is only composed of one brake lightbulb and the car battery.A1For all of the following, we're considering parallel plate capacitors. Select all the true statements. If none of them are true, select "None of the above." A. Capacitance is the property of a device that enables it to store current.B. Charge is stored in the dielectric medium between the plates of a capacitor.C. The capacitance of a parallel plate capacitor depends on the charge stored on the plates.D. The charges on the two plates of a capacitor are equal in magnitude and sign.E. Adding a dielectric between the plates of an isolated air-filled charged capacitor reduces the charge stored on the device.F. None of the above.