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Novay_Z [31]
3 years ago
14

Describe Ohm's law and its limitations;

Physics
1 answer:
siniylev [52]3 years ago
5 0
<span>The Ohm's Law is a powerful and simple tool to analyze electric circuits. It shows the relationship between voltage (V) and current (I) in a conductor. But, in order to properly apply to circuits (real circuits), its limitations must be understood.   Most conductors, resistance is greatly unaffected by current or voltage (resistance is stable property).
Limitation: this law does not apply to rectifiers or semiconductors or to the conduction of electricity through gases.</span>
Formula: current (I) is equal to voltage (V) over resistance (R)


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Answer:

Option B. 2.8 s

Explanation:

The following data were obtained from the question:

Initial velocity (u) = 27 m/s

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The time of flight of the ball can be obtained as follow:

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