The answer is 8.
The innermost shell can only hold 2 electrons, but the second shell (and other shells afterward) can hold 8 or more (depending on the level).
The electronic components are often used to prevent large voltage spikes from being produced when the current flow through an inductor is suddenly terminated is diode.
Inductive fly back refers to the voltage spike created by an inductor when its power supply is suddenly reduced or removed. This voltage spike occurs because the current flowing through the inductor cannot change instantly. The rate at which the current can change is limited by the inductor's time constant.
Diodes are used to protect circuits by limiting the voltage and to also transform AC into DC. Semiconductors like silicon and germanium are used to make the most of the diodes. Even though they transmit current in a single direction, the way with which they transmit differs. There are different kinds of diodes and each type has its own applications.
Voltage spikes occur when the current flow through an inductor stops and the current decreases exponentially. The electronic device "diode" is used to prevent induced voltage spikes because of the current flow in the forward direction and stops the current in the reverse direction.
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