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If you measure the current in a circuit and the voltage across the circuit, can you predict the
resistance in the circuit? Explain how.

Sagot :

brainsoft

Answer:

Sure, you can.

Explanation:

» Record the ammeter reading and voltimeter reading as I and V respectively.

» Then, from ohm's law [ voltage is proportional to current ]

[tex]{ \rm{V \: \alpha \: I}}[/tex]

» Input the constant of proprtionality, from ohm's law, resistance is constant [ R ≠ 0 ]

[tex]{ \rm{V = IR}}[/tex]

  • V is voltage
  • I is current
  • R is resistance

[tex]{ \boxed{ \boxed{ \rm{ \:R = \frac{V}{I} \: \: }}}}[/tex]

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