25. Transistor Alternatives

Question.1

A student is repairing a battery charger circuit that originally used a transistor to handle 1 Amp of current. The 1 Amp part is missing from the lab, but the student finds another transistor in the same package that is rated for 5 Amps.

What will happen if the 5 Amp transistor is used as an alternative in this 1 Amp circuit?

The circuit will fail because the new transistor will force 5 Amps of current into the battery.
The 5 Amp transistor is a safe alternative because it can handle the required current with extra "strength" to spare.
The transistor will explode because its current rating is too far away from the original design.
The circuit will only work at 20% speed because the transistor is too large for the job.

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