How do i work out this ammeter reading with 2 resistors in parellel?

  • 0 votes

Hi:)

The questions is: the two resistors are now connected in parallel. Calculate the new reading on the ammeter when S is closed, stating clearly any equations the you use.

The voltage is 12V

The resistor readings are: 16 omhs and 8 omhs

Thank you!!

Posted Thu 4th April, 2013 @ 08:55 by Meg.an

1 Answer

  • 1 vote

1/ (1/16 + 1/8) = 16/3 Ohms ....which is the total resistance in the circuit.

Then V=IR 

V/R=I 

12/(16/3) = 2.25A 

Answered Thu 4th April, 2013 @ 22:48 by Rezaul