You have a faculty position at a community college and are m (caching a class in automotive technology. You are deep in a discussion of using jumper cables to start a car with a dead battery from a car with a fresh battery. You have drawn the circuit diagram in Figure P27.16 to explain the process. The battery on the left is the live batten- in the correctly functioning car, with emf ε and internal resistance R L where the L . subscript refers to “live.” Its terminals are connected directly across those of the dead battery, in the middle of the diagram, with emf ε and internal resistance R D where the D subscript refers to "dead” Then, the starter in the car with the dead battery is activated by closing the ignition switch, allowing the car to start. The resistance of the starter is R s . A student raises his hand and asks, “So is the dead battery being charged while the starter is operating?” How do you respond?
You have a faculty position at a community college and are m (caching a class in automotive technology. You are deep in a discussion of using jumper cables to start a car with a dead battery from a car with a fresh battery. You have drawn the circuit diagram in Figure P27.16 to explain the process. The battery on the left is the live batten- in the correctly functioning car, with emf ε and internal resistance R L where the L . subscript refers to “live.” Its terminals are connected directly across those of the dead battery, in the middle of the diagram, with emf ε and internal resistance R D where the D subscript refers to "dead” Then, the starter in the car with the dead battery is activated by closing the ignition switch, allowing the car to start. The resistance of the starter is R s . A student raises his hand and asks, “So is the dead battery being charged while the starter is operating?” How do you respond?
Solution Summary: The author explains that the circuit having live and dead batteries is shown in the following figure.
You have a faculty position at a community college and are m (caching a class in automotive technology. You are deep in a discussion of using jumper cables to start a car with a dead battery from a car with a fresh battery. You have drawn the circuit diagram in Figure P27.16 to explain the process. The battery on the left is the live batten- in the correctly functioning car, with emf ε and internal resistance RL where the L. subscript refers to “live.” Its terminals are connected directly across those of the dead battery, in the middle of the diagram, with emf ε and internal resistance RD where the D subscript refers to "dead” Then, the starter in the car with the dead battery is activated by closing the ignition switch, allowing the car to start. The resistance of the starter is Rs. A student raises his hand and asks, “So is the dead battery being charged while the starter is operating?” How do you respond?
Plastic beads can often carry a small charge and therefore can generate electric fields. Three beads are oriented such that
system of all three beads is zero.
91
E field lines
93
92
What charge does each bead carry?
91
92
-1.45
=
=
What is the net charge of the system? What charges have to be equal? μC
2.9
×
What is the net charge of the system? What charges have to be equal? μC
93 = 2.9
μС
92
is between and
91 93°
The sum of the charge on q₁ and 92 is 91 + 92 = −2.9 μC, and the net charge of the
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DC Series circuits explained - The basics working principle; Author: The Engineering Mindset;https://www.youtube.com/watch?v=VV6tZ3Aqfuc;License: Standard YouTube License, CC-BY