Answer :
Final answer:
No additional EMF is induced when a 12 V battery is connected to a 6-ohm resistor and the switch is turned on; the induced EMF is 0 V.
Explanation:
The question asks about the electromotive force (EMF) induced when a switch is turned on in a simple circuit consisting of a 12 V battery connected to a 6-ohm resistor.
According to Ohm's Law, V = IR, where V is the voltage, I is the current, and R is the resistance. In this situation, there is no mention of an inductor or any changing magnetic field that would induce an EMF according to Faraday's Law of electromagnetic induction.
Therefore, turning on the switch creates a situation where the current flows almost instantaneously, and no additional EMF is induced in the circuit beyond what is already provided by the battery.
Thus, the answer to the question is (d) 0 V, since no additional EMF is generated beyond the 12 V provided by the battery.
