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I need help with this

 

In physics, Ohm's law says that current through a wire, I, is directly proportional to voltage, V, and inversely proportional to resistance, R:
I = V/R
It's also true that resistance is directly proportional to the length of the wire.  We have a piece of wire.  We pass 60 volts through this wire and measure 200 milliamps of current.  If I cut the wire in half and pass 400 volts through it, how many milliamps of current will I measure?

 Jun 11, 2023
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How many milliamps of current will I measure?

 

Hello Guest!

 

I=URR=UIU=60VI=200mAR=UI=60V200mA1000mAAR=300ΩI=URU=400VR=300Ω2=150Ω

I=400V150Ω1000mAAI=2667mA

2667 milliamps of current will I measure.

laugh  !

 Jun 12, 2023
edited by asinus  Jun 12, 2023

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