As shown, several current-carrying wires are connected with seven ammeters in the arrangement shown. Which statement is correct?
(A) Meter A1 reads 17 amps and meter A2 4 amps
(B) Meter A1 reads 4 amps and meter A2 16 amps
(C) Meter A1 reads 16 amps and meter A2 16 amps
(D) Meter A1 reads 4 amps and meter A2 17 amps
(E) Meter A1 reads 7 amps and meter A2 16 amps
2. A circuit contains a 12 volt power supply and the following resistors; 3.0 ̐, 4.0 ̐ and 6.0 ̐. Which of the following is the correct arrangement for these components such that the current through the battery is 2.0 amps?
(A) All resistors should be wired in series.
(B) All resistors should be wired in parallel.
(C) The 3.0 ̐ and the 4.0 ̐ resistors should be in parallel, and the 6.0 ̐ resistor should be connected in series.
(D) The 3.0 ̐ and the 6.0 ̐ resistors should be in parallel, and the 4.0 ̐ resistor should be connected in series.
(E) The 4.0 ̐ and the 6.0 ̐ resistors should be in parallel, and the 3.0 ̐ resistor should be connected in series.
3. The circuit connection shown contains five identical resistors of value R. What is the equivalent resistance between points A and B?
(A) 2R/7
(B) 2R/3
(C) 3R/2
(D) 5R/2
(E) 7R/2