Real batteries have some small internal resistance. What changes to a circuit wi
ID: 1552809 • Letter: R
Question
Real batteries have some small internal resistance. What changes to a circuit with a real battery compared to a circuit with a real battery compared to a circuit with an ideal battery (one with zero internal resistance)? A) The current B) The voltage drop at the end of a resistor connected to the circuit C) The power delivered to the resistor D) All of the above E) None of the above Two identical Alight bulbs, labeled A and B, are connected in series with a battery and are illuminated equally. There is a switch in the circuit that is initially open. Which one of the following statements concerning the two bulbs is true after the switch is closed? A) Bulbs A and B will be off. B) Bulbs A and B will be equally illuminated. C) Bulb A will be brighter and bulb B will be off. D) Bulb A will be off and bulb B will be brighter. E) Both bulbs will be dimmer than before the switch was closed.Explanation / Answer
1) D)
Since the overall resistance increases the current will decrease so will be the voltage drop across each resistor
V = IR and power too = I^2R
Hence answer will be all the above.
2) D
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