2007-03-27 22:28:39 · 3 answers · asked by hunny_b 1 in Science & Mathematics ➔ Physics
Yes it will deflect! An ammeter is practically a short (very low resistance). So all the current will bypass the bulb and go through the ammeter.
You'd better hope that there is another resister or something in series in the circuit or else you might damage the ammeter or your wires or your power source.
Most voltage sources have a current cutoff, so that they'll quickly exceed their cutoff and just turn off if you try this.
2007-03-27 23:06:36 · answer #1 · answered by Anonymous · 1⤊ 0⤋
Ammeters need to be connected in series within a circuit for them to work correctly, they are very low resistance (as not to influence the current flowing.)
Voltmeters are placed in parallel, as they are high resistance.
You can damage ammeters by putting them in parallel.
2007-03-28 05:44:08 · answer #2 · answered by Doctor Q 6 · 1⤊ 0⤋
very simple approach
when the resistors are connected in parallel,the effective resistance will be low according to formula 1/R=1/r1+1/r2.when the resistance will be low,it will not resist current and more current flow which will damage ammeter and it will be blown up
2007-03-28 06:30:58 · answer #3 · answered by ghulamalimurtaza 3 · 0⤊ 0⤋