3.-' ㅢ16.66 points SerPOPS 23 P.036. MI. My Notes Ask Your Teacher An inductor in the...
An inductor in the form of a solenoid contains 400 turns and is15.4 cm in length. A uniform rate of decrease of current through the inductor of 0.421 A/s induces an emf 175 mu V. What is the radius of the solenoid?
An inductor in the form of a solenoid contains 420 turns, is 16 cm in length and has a cross- sectional area of 3cm^2. What uniform rate of decrease of current through the inductor would induce an emf of 175 mu V? What is the self-inductance of the coil?
An inductor in the form of an air core solenoid contains 568 turns, is of length 9.7 cm, and has a cross sectional area of 1.2 cm^2. The permeability of free space is 1.25664*10^-6 N/A^2. What is the magnitude of the uniform rate of change in current through the inductor that induces an emf of 275 muV? Answer in units of A/s.
4. - 1 points SerCP11 23.5.OP.036. My Notes Ask Your Teacher A detective inspects o nickel with a magnifying glass, as shown below. Viewed through the lens, the nickel appears to have three times its unmated diameter. If the nickel les 2.85 cm beneath the magnifying lens, what is the focal length (in cm) of that lens? Need Help? Pad
-/1 points SerPSE10 26.2.P.013.MI. My Notes Ask Your Teacher Suppose you wish to fabricate a uniform wire from 2.50 g of copper. The wire is to have a resistance of R 0.520 n and all the copper is to be used (a) What must be the length of this wire? m (b) What must be the diameter of this wire? um
4. 1/2 points | Previous Answers KatzPSEf1 23.P.046. My Notes Ask Your Teacher The figure below shows four identical conducting spheres with charge q +4.50 nC placed at the corners of a rectangle of width w = 24.0 cm and height h = 55.0 cm. what are the magnitude and direction of the net electrostatic force on the charge on the lower right-hand corner? magnitude 3.54e-6 direction-12.53 X (counterclockwise from the +x axis) Need Help? Read it Submit Answer Save...
2. -12 points CJ10 30.P.003. My Notes Ask Your Teacher Suppose that you're building a scale model of the hydrogen atom, and the nucleus is represented by a ball of radius 2.2 cm (somewhat smaller than a baseball). How many miles away (1 mi = 1.61 x 105 cm) should the electron be placed? miles Additional Materials Section 30.1
| -/1 points v SERCP11 18.5.P.036. My Notes Ask Your Teacher v The RC charging circuit in a camera flash unit has a voltage source of 285 V and a capacitance of 141 uF. HINT (a) Find its resistance R (in ohms) if the capacitor charges to 90.0% of its final value in 14.2 s. (b) Find the average current (in A) delivered to the flash bulb if the capacitor discharges 90.0% of its full charge in 1.34 ms. ГА
1. (-/1 Points) DETAILS KATZPSEF1 28.P.053.MI. MY NOTES ASK YOUR TEACHER PR A 60.0-W lightbulb is connected to a 220.0-V source. (a) What is the current through the bulb? (b) What is the internal resistance of the bulb? Need Help? Read it Master It Submit Answer 2. (-/1 Points] DETAILS KATZPSEF1 28.P.063. MY NOTES ASK YOUR TEACHER PR The USB charger for a smartphone delivers 520.0 mA of current at 5.10 V while charging the phone. What is the power...
9. -/10 points My Notes Ask Your Teacher Two solenoids A and B, spaced close to each other and sharing the same cylindrical axis, have 390 and 630 turns, respectively. A current of 2.00 A in solenoid A produces an average flux of 300 Wb through each turn of A and a flux of 90.0 uWb through each turn of B. (a) Calculate the mutual inductance of the two solenoids. mH (b) What is the inductance of A? CmH (c)...