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3 years ago

A 100 V battery is connected across a

Physics

1 answer:

Sergio039 [100]3 years ago

5 0

1 mA = 0.001 A

Therefore, 5 mA = 0.001 * 5

=0.005 A

Resistance = voltage / current

= 100 / 0.005

= 20000 ohms

Current = voltage / resistance

= 25 / 20000

= 0.00125 A (or) 1.25 mA

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Read 2 more answers

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ololo11 [35]

Answer:

Part a)

$f_B = 290 Hz$

Part B)

percentage increase is

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Explanation:

Part a)

As we know that the beat frequency is

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So we have

$293 - f_B = 3$

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Part B)

percentage increase in the tension of the string will be given as

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