Question

If you measure the current in a circuit and the voltage across the circuit, can you predict the

resistance in the circuit? Explain how.

Answer 1

Sure, you can.

Step-by-step explanation:

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

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

`{ \rm{V \: \alpha \: I}}`

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

`{ \rm{V = IR}}`

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

`{ \boxed{ \boxed{ \rm{ \:R = (V)/(I) \: \: }}}}`