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Concept explainers
A spherically symmetric charge distribution produces the elec-
tric field
a. What is the electric field strength at r = 20 cm?
b. What is the electric flux through a 40-cm-diameter spherical
surface that is concentric with the charge distribution?
c. How much charge is inside this 40-cm-diameter spherical
surface?
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Chapter 24 Solutions
Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (Chs 1-42) Plus Mastering Physics with Pearson eText -- Access Card Package (4th Edition)
- 1. The image shows electrons flowing in a conductor with cross sectional area 1mm². A electron flow • Add an arrow showing the direction of current. B • Which end has the highest potential? • Calculate the current when 1019 electrons flow through the wire in 10 s. If there are 1026 electrons per unit volume what is the drift velocity of the electrons?arrow_forwardpls helparrow_forwardpls helparrow_forward
- 1. A 3.5 kg object travelling south at a speed of 5.6 m/s hits a 2.4 kg object travelling north at a speed of 4.3 m/s, the objects do not stick together. Find the velocities of each other after collision if it is elastic and head-on.arrow_forwardpls helparrow_forwardNo chatgpt pls will upvote Already got wrong chatgpt answerarrow_forward
- PART III - RESISTORS IN PARALLEL Consider (but do not yet build) the circuit shown in the circuit diagram to the left, which we will call Circuit 3. Make sure you are using Bert bulbs. You may want to wire two batteries in series rather than use a single battery. 7. Predict: a) How will the brightness of bulb B3A compare to the brightness to bulb B3B? c) X E B3A b) How will the brightness of bulb BзA compare to the brightness of bulb B₁ from Circuit 1? How will the currents at points X, Y, and Z be related? www d) How will the current at point X in this circuit compare to the current at point X from Circuit 1? Y Z B3B wwwarrow_forwardPART II - RESISTORS IN SERIES Consider (but do not yet build) the circuit shown in the circuit diagram to the left, which we will call Circuit 2. Make sure you are using Bert bulbs. You may want to wire two batteries in series rather than use a single battery. 4. Predict: a) How will the brightness of bulb B₂ compare to the brighness to bulb B2B? X B2A E Y B2B Ꮓ b) How will the brightness of bulb B2A compare to the brightness of bulb B₁ from Circuit 1? c) How will the currents at points X, Y, and Z be related? d) How will the current at point X in this circuit compare to the current at point X from Circuit 1?arrow_forwardNo chatgpt pls will upvote Already got wrong chatgpt answerarrow_forward
- What is the practical benefit (in terms of time savings and efficiency) of defining the potential energy? Be clear about what is required in terms of calculation if we do not use the concept of potential energy.arrow_forwardWhat is the critical angle fir the light travelling from the crown glass(n=1.52) into the air(n=1.00)?arrow_forwardNo chatgpt pls will upvotearrow_forward
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