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Please explain! In the circuit shown above left, flashbulb A is lighted when the

ID: 2273517 • Letter: P

Question



Please explain!

In the circuit shown above left, flashbulb A is lighted when the circuit is closed. If a second identical flashbulb B were placed in series with A, the current at point 1 would A. Increase B. Decrease C. Stay the same Answer using the following format: First, pick the best response, and then write a brief justification. For example, "D. This is true because..." In the circuit shown above left, flashbulb A is lighted when the circuit is closed. If a second identical flashbulb B were placed in parallel with A, the current at point 1 would A. Increase B. Decrease C. Stay the same Answer using the following format: First, pick the best response, and then write a brief justification. For example, "D. This is true because..."

Explanation / Answer

2) Decrease

    On adding another bulb in series, resistance increases, thus current = V/R reduces, thus current decreases.


3) Stay same

    The voltage across A is constant and resistance of A as well, thus I = V/R stays same