Consider a circuit consisting of the following elements in a single loop: a battery, a resistor, a switch, and a fourth unknown element $$\(E\)$$. A spark is most likely to occur at the switch if
A.
\(E\) is a capacitor and the switch is being closed for the first time.
B.
\(E\) is a capacitor and the switch is being opened after the circuit has reached equilibrium.
C.
E is an inductor and the switch is being closed for the first time.
D.
\(E\) is an inductor and the switch is being opened after the circuit has reached equilibrium.
E.
\(E\) is a battery arranged in series with the other battery in the circuit.
Exam No：AP Physics C(EM) Practice Test Year：2024 Question No：22
Answer:
D
Knowledge points:
3.4 Electrostatics: Gauss’s Law
5.2 Electromagnetism: Inductance (Including LR circuits)
Solution:
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