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Dennis_Churaev [7]
3 years ago
14

What is the voltage drop across the 30 ohm resistor?

Physics
1 answer:
Jlenok [28]3 years ago
5 0
B - the voltage drop is 60 V
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An orange light (f = 5.2 * 10'4Hz) is
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Answer:

2.145×10^-10 V or 0.2145nV

Explanation:

From hf=eV

h= Plank's constant = 6.6×10^-34JS

f= frequency of the electromagnetic wave = 5.2×10^4 Hz

e= electronic charge= 1.6×10^-19 C

V= voltage

V= hf/e

V= 6.6×10^-34JS × 5.2×10^4 Hz/ 1.6×10^-19 C

V= 2.145×10^-10 V or 0.2145nV

Therefore the voltage created is 2.145×10^-10 V or 0.2145nV

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