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3 years ago

28. In the diagram above which symbol represents the light bulb ?

Physics

2 answers:

allochka39001 [22]3 years ago

4 0

Answer:

Light bulb - B

Battery - A

Explanation:

The electric circuit consists of a battery, an electric bulb, a switch etc. A battery act as a source of electric power. Its positive terminal is called cathode and its negative terminal is called as anode.

(28) In the given figure, B represents the light bulb.

(29) In the given figure, A represents the battery. There are some rechargeable batteries like lithium batteries, Nickel cadmium etc.

Tanzania [10]3 years ago

3 0

28. It's B
29. It's A

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Answer:

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Knowing the formula

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by the end is necessary to calculate the separation of the level

En - En-1 = $(n^{2} - (n - 1)^{2}) * \frac{h^{2} }{8 mL^{2} }$

= 1.8 * $10^{-30}$ J

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