Which of the following arrangement A, B, C and D given in fig 12.9 should not be set up? Explain, why?
A
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B
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C
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D
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Solution
The correct option is A
The explanation of the correct option:
Circuit A is inappropriate because it is an incomplete circuit.
The current in circuit A will flow from the negative terminal of the cell to the positive terminal, and the power will be consumed completely without any output.
The explanation for the incorrect options:
In circuit B negative terminal and the positive terminal of the cell are connected to the two bulbs, so consume of the cell will be at a high rate and we will get more light.
In-circuit C, both the terminal of the cell is connected to the bulb, power will be consumed by the bulb.
In-circuit D, the switch is used to connect the cell with the bulb, the bulb will use electric cell at a very low rate.
